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<li id="toc-Planning" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Planning"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Planning</span> </div> </a> <ul id="toc-Planning-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Construction" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Construction"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>Construction</span> </div> </a> <ul id="toc-Construction-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Filling_and_operations" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Filling_and_operations"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3</span> <span>Filling and operations</span> </div> </a> <ul id="toc-Filling_and_operations-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-21st_century_drought_and_push_to_drain" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#21st_century_drought_and_push_to_drain"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4</span> <span>21st century drought and push to drain</span> </div> </a> <ul id="toc-21st_century_drought_and_push_to_drain-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Climate" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Climate"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Climate</span> </div> </a> <ul id="toc-Climate-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Geology" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Geology"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Geology</span> </div> </a> <ul id="toc-Geology-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Landmarks_and_features" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Landmarks_and_features"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Landmarks and features</span> </div> </a> <ul id="toc-Landmarks_and_features-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Images" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Images"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Images</span> </div> </a> <ul id="toc-Images-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Development" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Development"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Development</span> </div> </a> <ul id="toc-Development-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Fish_species" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Fish_species"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Fish species</span> </div> </a> <ul id="toc-Fish_species-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Invasive_species" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Invasive_species"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Invasive species</span> </div> </a> <ul id="toc-Invasive_species-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Pipeline_proposal" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Pipeline_proposal"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>Pipeline proposal</span> </div> </a> <ul id="toc-Pipeline_proposal-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">10</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliography" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bibliography"> <div class="vector-toc-text"> <span class="vector-toc-numb">11</span> <span>Bibliography</span> </div> </a> <ul id="toc-Bibliography-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Further_reading" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Further_reading"> <div class="vector-toc-text"> <span class="vector-toc-numb">12</span> <span>Further reading</span> </div> </a> <ul id="toc-Further_reading-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">13</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label 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Available in 29 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-29" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">29 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A8%D8%AD%D9%8A%D8%B1%D8%A9_%D8%A8%D8%A7%D9%88%D9%84" title="بحيرة باول – Arabic" lang="ar" hreflang="ar" data-title="بحيرة باول" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Powell_%C3%94%CD%98" title="Powell Ô͘ – Minnan" lang="nan" hreflang="nan" data-title="Powell Ô͘" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="Minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9F%D0%B0%D1%9E%D1%8D%D0%BB_(%D0%B2%D0%BE%D0%B7%D0%B5%D1%80%D0%B0)" title="Паўэл (возера) – Belarusian" lang="be" hreflang="be" data-title="Паўэл (возера)" data-language-autonym="Беларуская" data-language-local-name="Belarusian" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Llac_Powell" title="Llac Powell – Catalan" lang="ca" hreflang="ca" data-title="Llac Powell" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ceb mw-list-item"><a href="https://ceb.wikipedia.org/wiki/Lake_Powell_(tubiganan_sa_Tinipong_Bansa,_Utah,_Kane_County,_lat_37,32,_long_-110,81)" title="Lake Powell (tubiganan sa Tinipong Bansa, Utah, Kane County, lat 37,32, long -110,81) – Cebuano" lang="ceb" hreflang="ceb" data-title="Lake Powell (tubiganan sa Tinipong Bansa, Utah, Kane County, lat 37,32, long -110,81)" data-language-autonym="Cebuano" data-language-local-name="Cebuano" class="interlanguage-link-target"><span>Cebuano</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Lake_Powell" title="Lake Powell – Danish" lang="da" hreflang="da" data-title="Lake Powell" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Lake_Powell" title="Lake Powell – German" lang="de" hreflang="de" data-title="Lake Powell" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Lago_Powell" title="Lago Powell – Spanish" lang="es" hreflang="es" data-title="Lago Powell" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AF%D8%B1%DB%8C%D8%A7%DA%86%D9%87_%D9%BE%D8%A7%D9%88%D9%84" title="دریاچه پاول – Persian" lang="fa" hreflang="fa" data-title="دریاچه پاول" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Lac_Powell" title="Lac Powell – French" lang="fr" hreflang="fr" data-title="Lac Powell" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Lago_Powell" title="Lago Powell – Galician" lang="gl" hreflang="gl" data-title="Lago Powell" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%ED%8C%8C%EC%9B%94%ED%98%B8" title="파월호 – Korean" lang="ko" hreflang="ko" data-title="파월호" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Lago_Powell" title="Lago Powell – Italian" lang="it" hreflang="it" data-title="Lago Powell" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%90%D7%92%D7%9D_%D7%A4%D7%90%D7%95%D7%95%D7%9C" title="אגם פאוול – Hebrew" lang="he" hreflang="he" data-title="אגם פאוול" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Lake_Powell,_Arizona" title="Lake Powell, Arizona – Haitian Creole" lang="ht" hreflang="ht" data-title="Lake Powell, Arizona" data-language-autonym="Kreyòl ayisyen" data-language-local-name="Haitian Creole" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Gola_Powell" title="Gola Powell – Kurdish" lang="ku" hreflang="ku" data-title="Gola Powell" data-language-autonym="Kurdî" data-language-local-name="Kurdish" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Pauelo_tvenkinys" title="Pauelo tvenkinys – Lithuanian" lang="lt" hreflang="lt" data-title="Pauelo tvenkinys" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Powell-t%C3%B3" title="Powell-tó – Hungarian" lang="hu" hreflang="hu" data-title="Powell-tó" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%AA%E0%B5%8B%E0%B4%B5%E0%B5%86%E0%B5%BD_%E0%B4%A4%E0%B4%9F%E0%B4%BE%E0%B4%95%E0%B4%82" title="പോവെൽ തടാകം – Malayalam" lang="ml" hreflang="ml" data-title="പോവെൽ തടാകം" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Powellmeer" title="Powellmeer – Dutch" lang="nl" hreflang="nl" data-title="Powellmeer" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%91%E3%82%A6%E3%82%A8%E3%83%AB%E6%B9%96" title="パウエル湖 – Japanese" lang="ja" hreflang="ja" data-title="パウエル湖" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Lake_Powell" title="Lake Powell – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Lake Powell" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Powell_(jezioro)" title="Powell (jezioro) – Polish" lang="pl" hreflang="pl" data-title="Powell (jezioro)" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Lago_Powell" title="Lago Powell – Portuguese" lang="pt" hreflang="pt" data-title="Lago Powell" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9F%D0%B0%D1%83%D1%8D%D0%BB%D0%BB_(%D0%B2%D0%BE%D0%B4%D0%BE%D1%85%D1%80%D0%B0%D0%BD%D0%B8%D0%BB%D0%B8%D1%89%D0%B5)" title="Пауэлл (водохранилище) – Russian" lang="ru" hreflang="ru" data-title="Пауэлл (водохранилище)" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Lake_Powell" title="Lake Powell – Simple English" lang="en-simple" hreflang="en-simple" data-title="Lake Powell" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9F%D0%B0%D1%83%D0%B5%D0%BB_(%D1%98%D0%B5%D0%B7%D0%B5%D1%80%D0%BE)" title="Пауел (језеро) – Serbian" lang="sr" hreflang="sr" data-title="Пауел (језеро)" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Powell_G%C3%B6l%C3%BC" title="Powell Gölü – Turkish" lang="tr" hreflang="tr" data-title="Powell Gölü" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E9%B2%8D%E5%A8%81%E5%B0%94%E6%B9%96" title="鲍威尔湖 – Chinese" lang="zh" hreflang="zh" data-title="鲍威尔湖" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div 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title="Geographic coordinate system">Coordinates</a>: <style data-mw-deduplicate="TemplateStyles:r1156832818">.mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-parser-output .geo-inline-hidden{display:none}.mw-parser-output .longitude,.mw-parser-output .latitude{white-space:nowrap}</style><span class="plainlinks nourlexpansion"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=Lake_Powell&params=36_56_10_N_111_29_03_W_region:US-AZ_type:waterbody_source:gnis"><span class="geo-default"><span class="geo-dms" title="Maps, aerial photos, and other data for this location"><span class="latitude">36°56′10″N</span> <span class="longitude">111°29′03″W</span></span></span><span class="geo-multi-punct"> / </span><span class="geo-nondefault"><span class="geo-dec" title="Maps, aerial photos, and other data for this location">36.93611°N 111.48417°W</span><span style="display:none"> / <span class="geo">36.93611; -111.48417</span></span></span></a></span></span></div></div> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Reservoir in Utah and Arizona, United States</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">For the lake in Australia, see <a href="/wiki/Lake_Powell,_Victoria" title="Lake Powell, Victoria">Lake Powell, Victoria</a>. For the lake in Virginia, see <a href="/wiki/Lake_Powell_(Virginia)" title="Lake Powell (Virginia)">Lake Powell (Virginia)</a>.</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox vcard"><tbody><tr><th colspan="2" class="infobox-above fn org" style="background-color: #cedeff; font-size: 125%;">Lake Powell</th></tr><tr><td colspan="2" class="infobox-image" style="line-height: 1.2; border-bottom: 1px solid #cedeff;"><span class="mw-image-border" typeof="mw:File"><a href="/wiki/File:Lake_Powell_by_Sentinel-2.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/21/Lake_Powell_by_Sentinel-2.jpg/264px-Lake_Powell_by_Sentinel-2.jpg" decoding="async" width="264" height="281" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/21/Lake_Powell_by_Sentinel-2.jpg/396px-Lake_Powell_by_Sentinel-2.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/21/Lake_Powell_by_Sentinel-2.jpg/528px-Lake_Powell_by_Sentinel-2.jpg 2x" data-file-width="5901" data-file-height="6279" /></a></span></td></tr><tr><td colspan="2" class="infobox-image" style="line-height: 1.2; border-bottom: 1px solid #cedeff;"><div class="switcher-container"><style data-mw-deduplicate="TemplateStyles:r1238443738">.mw-parser-output .locmap .od{position:absolute}.mw-parser-output .locmap .id{position:absolute;line-height:0}.mw-parser-output .locmap .l0{font-size:0;position:absolute}.mw-parser-output .locmap .pv{line-height:110%;position:absolute;text-align:center}.mw-parser-output .locmap .pl{line-height:110%;position:absolute;top:-0.75em;text-align:right}.mw-parser-output .locmap .pr{line-height:110%;position:absolute;top:-0.75em;text-align:left}.mw-parser-output .locmap .pv>div{display:inline;padding:1px}.mw-parser-output .locmap .pl>div{display:inline;padding:1px;float:right}.mw-parser-output .locmap .pr>div{display:inline;padding:1px;float:left}@media screen{html.skin-theme-clientpref-night .mw-parser-output .od,html.skin-theme-clientpref-night .mw-parser-output .od .pv>div,html.skin-theme-clientpref-night .mw-parser-output .od .pl>div,html.skin-theme-clientpref-night .mw-parser-output .od .pr>div{background:#fff!important;color:#000!important}html.skin-theme-clientpref-night .mw-parser-output .locmap{filter:grayscale(0.6)}html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data .locmap div{background:transparent!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .locmap{filter:grayscale(0.6)}html.skin-theme-clientpref-os .mw-parser-output .od,html.skin-theme-clientpref-os .mw-parser-output .od .pv>div,html.skin-theme-clientpref-os .mw-parser-output .od .pl>div,html.skin-theme-clientpref-os .mw-parser-output .od .pr>div{background:white!important;color:#000!important}html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data .locmap div{background:transparent!important}}</style><div class="center"><div class="locmap" style="width:256px;float:none;clear:both;margin-left:auto;margin-right:auto"><div style="width:256px;padding:0"><div style="position:relative;width:256px"><span class="notpageimage" typeof="mw:File"><a href="/wiki/File:USA_Arizona_relief_location_map.svg" class="mw-file-description" title="Location of Lake Powell in Arizona and Utah, USA."><img alt="Location of Lake Powell in Arizona and Utah, USA." src="//upload.wikimedia.org/wikipedia/commons/thumb/6/67/USA_Arizona_relief_location_map.svg/256px-USA_Arizona_relief_location_map.svg.png" decoding="async" width="256" height="315" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/67/USA_Arizona_relief_location_map.svg/384px-USA_Arizona_relief_location_map.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/67/USA_Arizona_relief_location_map.svg/512px-USA_Arizona_relief_location_map.svg.png 2x" data-file-width="893" data-file-height="1099" /></a></span><div class="od notheme" style="top:5.869%;left:55.807%;font-size:91%"><div class="id" style="left:-3px;top:-3px"><span class="notpageimage" typeof="mw:File"><span title="Lake Powell"><img alt="Location of Lake Powell in Arizona and Utah, USA." src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Red_pog.svg/6px-Red_pog.svg.png" decoding="async" width="6" height="6" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Red_pog.svg/9px-Red_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Red_pog.svg/12px-Red_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></span></span></div><div class="pv" style="width:6em;top:4px;left:-3em"><div>Lake Powell</div></div></div></div><div style="padding-top:0.2em"></div><span class="switcher-label" style="display:none">Show map of Arizona</span></div></div></div><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238443738"><div class="center"><div class="locmap" style="width:256px;float:none;clear:both;margin-left:auto;margin-right:auto"><div style="width:256px;padding:0"><div style="position:relative;width:256px"><span class="notpageimage" typeof="mw:File"><a href="/wiki/File:USA_Utah_relief_location_map.svg" class="mw-file-description" title="Location of Lake Powell in Arizona and Utah, USA."><img alt="Location of Lake Powell in Arizona and Utah, USA." src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9d/USA_Utah_relief_location_map.svg/256px-USA_Utah_relief_location_map.svg.png" decoding="async" width="256" height="304" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9d/USA_Utah_relief_location_map.svg/384px-USA_Utah_relief_location_map.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9d/USA_Utah_relief_location_map.svg/512px-USA_Utah_relief_location_map.svg.png 2x" data-file-width="868" data-file-height="1031" /></a></span><div class="od notheme" style="top:94.205%;left:51.079%;font-size:91%"><div class="id" style="left:-3px;top:-3px"><span class="notpageimage" typeof="mw:File"><span title="Lake Powell"><img alt="Location of Lake Powell in Arizona and Utah, USA." src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Red_pog.svg/6px-Red_pog.svg.png" decoding="async" width="6" height="6" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Red_pog.svg/9px-Red_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Red_pog.svg/12px-Red_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></span></span></div><div class="pv" style="width:6em;top:4px;left:-3em"><div>Lake Powell</div></div></div></div><div style="padding-top:0.2em"></div><span class="switcher-label" style="display:none">Show map of Utah</span></div></div></div><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238443738"><div class="center"><div class="locmap" style="width:256px;float:none;clear:both;margin-left:auto;margin-right:auto"><div style="width:256px;padding:0"><div style="position:relative;width:256px"><span class="notpageimage" typeof="mw:File"><a href="/wiki/File:Usa_edcp_relief_location_map.png" class="mw-file-description" title="Location of Lake Powell in Arizona and Utah, USA."><img alt="Location of Lake Powell in Arizona and Utah, USA." src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Usa_edcp_relief_location_map.png/256px-Usa_edcp_relief_location_map.png" decoding="async" width="256" height="158" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Usa_edcp_relief_location_map.png/384px-Usa_edcp_relief_location_map.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Usa_edcp_relief_location_map.png/512px-Usa_edcp_relief_location_map.png 2x" data-file-width="1181" data-file-height="731" /></a></span><div class="od notheme" style="top:51.966%;left:23.427%;font-size:91%"><div class="id" style="left:-3px;top:-3px"><span class="notpageimage" typeof="mw:File"><span title="Lake Powell"><img alt="Location of Lake Powell in Arizona and Utah, USA." src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Red_pog.svg/6px-Red_pog.svg.png" decoding="async" width="6" height="6" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Red_pog.svg/9px-Red_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Red_pog.svg/12px-Red_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></span></span></div><div class="pv" style="width:6em;top:4px;left:-3em"><div>Lake Powell</div></div></div></div><div style="padding-top:0.2em"></div><span class="switcher-label" style="display:none">Show map of the United States</span></div></div></div></div></td></tr><tr class="adr"><th scope="row" class="infobox-label">Location</th><td class="infobox-data region"><a href="/wiki/Utah" title="Utah">Utah</a> and <a href="/wiki/Arizona" title="Arizona">Arizona</a>, United States</td></tr><tr><th scope="row" class="infobox-label"><span title="Geographical coordinates">Coordinates</span></th><td class="infobox-data"><span class="geo-inline"><style data-mw-deduplicate="TemplateStyles:r1156832818">.mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-parser-output .geo-inline-hidden{display:none}.mw-parser-output .longitude,.mw-parser-output .latitude{white-space:nowrap}</style><span class="plainlinks nourlexpansion"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=Lake_Powell&params=36_56_10_N_111_29_03_W_region:US-AZ_type:waterbody_source:gnis"><span class="geo-default"><span class="geo-dms" title="Maps, aerial photos, and other data for this location"><span class="latitude">36°56′10″N</span> <span class="longitude">111°29′03″W</span></span></span><span class="geo-multi-punct"> / </span><span class="geo-nondefault"><span class="geo-dec" title="Maps, aerial photos, and other data for this location">36.93611°N 111.48417°W</span><span style="display:none"> / <span class="geo">36.93611; -111.48417</span></span></span></a></span></span> (Glen Canyon Dam)</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Body_of_water#Waterbody_types" title="Body of water">Type</a></th><td class="infobox-data category"><a href="/wiki/Reservoir" title="Reservoir">Reservoir</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Inflow_(hydrology)" class="mw-redirect" title="Inflow (hydrology)"><span title="Primary inflows: rivers, streams, precipitation">Primary inflows</span></a></th><td class="infobox-data"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"> <ul><li><a href="/wiki/Colorado_River" title="Colorado River">Colorado River</a></li> <li><a href="/wiki/Escalante_River" title="Escalante River">Escalante River</a></li> <li><a href="/wiki/San_Juan_River_(Colorado_River)" class="mw-redirect" title="San Juan River (Colorado River)">San Juan River</a></li> <li><a href="/wiki/Green_River_(Colorado_River_tributary)" title="Green River (Colorado River tributary)">Green River (Colorado River tributary)</a></li></ul> </div></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Discharge_(hydrology)" title="Discharge (hydrology)"><span title="Primary outflows: rivers, streams, evaporation">Primary outflows</span></a></th><td class="infobox-data"><a href="/wiki/Colorado_River" title="Colorado River">Colorado River</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Drainage_basin" title="Drainage basin">Catchment area</a></th><td class="infobox-data">280,586 km<sup>2</sup> (108,335 sq mi)</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Drainage_basin" title="Drainage basin">Basin</a> countries</th><td class="infobox-data">United States</td></tr><tr><th scope="row" class="infobox-label">Managing agency</th><td class="infobox-data agent"><a href="/wiki/National_Park_Service" title="National Park Service">National Park Service</a></td></tr><tr><th scope="row" class="infobox-label">Built</th><td class="infobox-data">September 13, 1963<span style="display:none"> (<span class="bday dtstart published updated itvstart">1963-09-13</span>)</span></td></tr><tr><th colspan="2" class="infobox-header" style="border-bottom: #cedeff 1px solid"></th></tr><tr class="note"><th scope="row" class="infobox-label">Max. length</th><td class="infobox-data">186 mi (299 km)</td></tr><tr class="note"><th scope="row" class="infobox-label">Max. width</th><td class="infobox-data">25 mi (40 km) (maximum)</td></tr><tr class="note"><th scope="row" class="infobox-label">Surface area</th><td class="infobox-data">161,390 acres (65,310 ha)</td></tr><tr class="note"><th scope="row" class="infobox-label">Average depth</th><td class="infobox-data">132 ft (40 m)</td></tr><tr class="note"><th scope="row" class="infobox-label">Max. depth</th><td class="infobox-data">583 ft (178 m)</td></tr><tr class="note"><th scope="row" class="infobox-label">Water volume</th><td class="infobox-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"> <ul><li><b>Full</b>:<br />24,322,000 acre⋅ft (30.001 km<sup>3</sup>)<sup id="cite_ref-lakepowell_1-0" class="reference"><a href="#cite_note-lakepowell-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></li> <li><b>Current</b> (July 10, 2024):<br />9,878,852 acre⋅ft (12.185385 km<sup>3</sup>)<sup id="cite_ref-lakepowell_1-1" class="reference"><a href="#cite_note-lakepowell-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></li></ul> </div></td></tr><tr class="note"><th scope="row" class="infobox-label"><a href="/wiki/Water_cycle#Residence_times" title="Water cycle">Residence time</a></th><td class="infobox-data">7.2 years</td></tr><tr class="note"><th scope="row" class="infobox-label">Shore length<sup>1</sup></th><td class="infobox-data">3,057 km (1,900 mi)</td></tr><tr class="note"><th scope="row" class="infobox-label">Surface elevation</th><td class="infobox-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"> <ul><li><b>Full</b>:<br />3,700 ft (1,128 m)<sup id="cite_ref-lakepowell_1-2" class="reference"><a href="#cite_note-lakepowell-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></li> <li><b>Current</b> (May 29, 2023):<br />3,569.07 ft (1,088 m)<sup id="cite_ref-lakepowell_1-3" class="reference"><a href="#cite_note-lakepowell-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></li></ul> </div></td></tr><tr><th colspan="2" class="infobox-header" style="border-bottom: #cedeff 1px solid"></th></tr><tr><th scope="row" class="infobox-label">Website</th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="https://www.nps.gov/glca/index.htm">www<wbr />.nps<wbr />.gov<wbr />/glca<wbr />/index<wbr />.htm</a></span></td></tr><tr><td colspan="2" class="infobox-below" style="border-bottom: 1px solid #cedeff; border-top: 1px solid #cedeff"><sup>1</sup> Shore length is <a href="/wiki/Coastline_paradox" title="Coastline paradox">not a well-defined measure</a>.</td></tr></tbody></table> <p><b>Lake Powell</b> is a <a href="/wiki/Reservoir" title="Reservoir">reservoir</a> on the <a href="/wiki/Colorado_River" title="Colorado River">Colorado River</a> in <a href="/wiki/Utah" title="Utah">Utah</a> and <a href="/wiki/Arizona" title="Arizona">Arizona</a>, United States. It is a major vacation destination visited by approximately two million people every year. It holds 24,322,000 acre-feet (3.0001<span style="margin:0 .15em 0 .25em">×</span>10<sup>10</sup> m<sup>3</sup>) of water when full, second in the United States to only <a href="/wiki/Lake_Mead" title="Lake Mead">Lake Mead</a> - though Lake Mead has fallen below Lake Powell in size several times during the 21st century in terms of volume of water, depth and surface area.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (April 2024)">citation needed</span></a></i>]</sup> </p><p>Lake Powell was created by the flooding of <a href="/wiki/Glen_Canyon" title="Glen Canyon">Glen Canyon</a> by the <a href="/wiki/Glen_Canyon_Dam" title="Glen Canyon Dam">Glen Canyon Dam</a>, which also led to the 1972 creation of <a href="/wiki/Glen_Canyon_National_Recreation_Area" title="Glen Canyon National Recreation Area">Glen Canyon National Recreation Area</a>, a popular summer destination of public land managed by the <a href="/wiki/National_Park_Service" title="National Park Service">National Park Service</a>. The reservoir is named for <a href="/wiki/John_Wesley_Powell" title="John Wesley Powell">John Wesley Powell</a>, a civil war veteran who explored the river via three wooden boats in 1869. It lies primarily in southern Utah, with a small portion in northern Arizona. </p><p>Lake Powell is a water storage facility for the Upper Basin states of the <a href="/wiki/Colorado_River_Compact" title="Colorado River Compact">Colorado River Compact</a> (<a href="/wiki/Colorado" title="Colorado">Colorado</a>, <a href="/wiki/Utah" title="Utah">Utah</a>, <a href="/wiki/Wyoming" title="Wyoming">Wyoming</a> and <a href="/wiki/New_Mexico" title="New Mexico">New Mexico</a>). The Compact specifies that the Upper Basin states are to provide a minimum annual flow of 7,500,000 acre-feet (9.3 km<sup>3</sup>) to the Lower Basin states (Arizona, Nevada, and California). </p><p>According to US Geological Survey and the Bureau of Reclamation report, in addition to water loss, Lake Powell faced an average annual loss in storage capacity of about 33,270 acre-feet, or 11 billion gallons, per year between 1963 and 2018 because of sediments flowing in from the <a href="/wiki/Colorado_River" title="Colorado River">Colorado</a> and <a href="/wiki/San_Juan_River_(Colorado_River_tributary)" title="San Juan River (Colorado River tributary)">San Juan</a> rivers. Those settle at the bottom of the reservoir and decrease the total amount of water the reservoir can hold.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Environmentalists have pushed to drain Lake Powell and restore Glen Canyon to its natural, free-flowing state.<sup id="cite_ref-:0_3-0" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:1_4-0" class="reference"><a href="#cite_note-:1-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:2_5-0" class="reference"><a href="#cite_note-:2-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Planning">Planning</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=2" title="Edit section: Planning"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In the 1940s and early 1950s, the <a href="/wiki/United_States_Bureau_of_Reclamation" title="United States Bureau of Reclamation">United States Bureau of Reclamation</a> planned to construct a series of Colorado River dams in the rugged Colorado Plateau province of Colorado, Utah, and Arizona. Glen Canyon Dam was born of a controversial damsite the Bureau selected in <a href="/wiki/Echo_Park_(Colorado)" title="Echo Park (Colorado)">Echo Park</a>, in what is now <a href="/wiki/Dinosaur_National_Monument" title="Dinosaur National Monument">Dinosaur National Monument</a> in Colorado. A small but politically effective group of objectors, led by <a href="/wiki/David_Brower" title="David Brower">David Brower</a> of the <a href="/wiki/Sierra_Club" title="Sierra Club">Sierra Club</a>, succeeded in defeating the Bureau's bid, citing Echo Park's natural and scenic qualities as too valuable to submerge. </p><p>Glen Canyon Dam was built to solve the downstream delivery obligations of the Upper Basin states. Lake Powell is an "aquatic bank" built to fulfill the terms of the "Compact Calls" of Lower Basin. </p> <div class="mw-heading mw-heading3"><h3 id="Construction">Construction</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=3" title="Edit section: Construction"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:Glen_Canyon_Dam_2013.jpg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6c/Glen_Canyon_Dam_2013.jpg/170px-Glen_Canyon_Dam_2013.jpg" decoding="async" width="170" height="208" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6c/Glen_Canyon_Dam_2013.jpg/255px-Glen_Canyon_Dam_2013.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6c/Glen_Canyon_Dam_2013.jpg/340px-Glen_Canyon_Dam_2013.jpg 2x" data-file-width="3256" data-file-height="3975" /></a><figcaption>Glen Canyon Dam in Page, Arizona</figcaption></figure> <p>Construction on <a href="/wiki/Glen_Canyon_Dam" title="Glen Canyon Dam">Glen Canyon Dam</a> began with a demolition blast keyed by the push of a button by President <a href="/wiki/Dwight_D._Eisenhower" title="Dwight D. Eisenhower">Dwight D. Eisenhower</a> at his desk in the <a href="/wiki/Oval_Office" title="Oval Office">Oval Office</a> on October 1, 1956, which started clearing tunnels for water diversion. On February 11, 1959, water flowed through the tunnels so dam construction could begin. Later that year, the bridge was completed, allowing trucks to deliver equipment and materials for the dam and also for the new town of <a href="/wiki/Page,_Arizona" title="Page, Arizona">Page, Arizona</a>. </p><p>Concrete placement started around the clock on June 17, 1960. The last bucket of over 5 million cubic yards (4,000,000 m<sup>3</sup>) was poured on September 13, 1963. The dam is 710 feet (216 m) high and the surface elevation of the water at full-pool is approximately 3700 feet (1100 m). Construction cost $155 million, and 18 lives were lost. On September 22, 1966, Glen Canyon Dam was dedicated by <a href="/wiki/Lady_Bird_Johnson" title="Lady Bird Johnson">Lady Bird Johnson</a>. From 1970 to 1980, turbines and generators were installed for hydroelectricity. </p> <div class="mw-heading mw-heading3"><h3 id="Filling_and_operations">Filling and operations</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=4" title="Edit section: Filling and operations"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Upon completion of Glen Canyon Dam on September 13, 1963, the Colorado River began to back up, no longer being diverted through the tunnels. The newly flooded Glen Canyon formed Lake Powell. Sixteen years elapsed before the lake filled to the 3,700 feet (1,100 m) level on June 22, 1980. The lake level fluctuates considerably depending on the seasonal snow runoff from the Rocky Mountains.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> The all-time highest water level was reached on July 14, 1983, during one of the heaviest Colorado River floods in recorded history, in part influenced by a strong <a href="/wiki/1982-83_El_Ni%C3%B1o_Event" class="mw-redirect" title="1982-83 El Niño Event">El Niño event</a>. The lake rose to 3,708.34 feet (1,130.30 m) above sea level, with a water content of 25,757,086 acre-feet (31.770898 km<sup>3</sup>).<sup id="cite_ref-data_9-0" class="reference"><a href="#cite_note-data-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> It lies primarily in parts of <a href="/wiki/Garfield_County,_Utah" title="Garfield County, Utah">Garfield</a>, <a href="/wiki/Kane_County,_Utah" title="Kane County, Utah">Kane</a>, and <a href="/wiki/San_Juan_County,_Utah" title="San Juan County, Utah">San Juan</a> counties in southern Utah, with a small portion in <a href="/wiki/Coconino_County,_Arizona" title="Coconino County, Arizona">Coconino County</a> in northern Arizona. The northern limits of the lake extend at least as far as the <a href="/wiki/Hite_Crossing_Bridge" title="Hite Crossing Bridge">Hite Crossing Bridge</a>. </p> <div class="mw-heading mw-heading3"><h3 id="21st_century_drought_and_push_to_drain">21st century drought and push to drain</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=5" title="Edit section: 21st century drought and push to drain"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/Southwestern_North_American_megadrought" title="Southwestern North American megadrought">Southwestern North American megadrought</a></div><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/Glen_Canyon_Dam#Continuing_debates" title="Glen Canyon Dam">Glen Canyon Dam § Continuing debates</a></div><figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Lake_Powell_daily_water_volume_(1963-06-28_-_2023-12-16).png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Lake_Powell_daily_water_volume_%281963-06-28_-_2023-12-16%29.png/220px-Lake_Powell_daily_water_volume_%281963-06-28_-_2023-12-16%29.png" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Lake_Powell_daily_water_volume_%281963-06-28_-_2023-12-16%29.png/330px-Lake_Powell_daily_water_volume_%281963-06-28_-_2023-12-16%29.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Lake_Powell_daily_water_volume_%281963-06-28_-_2023-12-16%29.png/440px-Lake_Powell_daily_water_volume_%281963-06-28_-_2023-12-16%29.png 2x" data-file-width="2560" data-file-height="1920" /></a><figcaption>Chart showing daily water volume observations for Lake Powell, from Jun 28, 1963 to December 16, 2023</figcaption></figure> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:Lake_Powell_surface_area_shrinkage.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Lake_Powell_surface_area_shrinkage.svg/220px-Lake_Powell_surface_area_shrinkage.svg.png" decoding="async" width="220" height="233" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Lake_Powell_surface_area_shrinkage.svg/330px-Lake_Powell_surface_area_shrinkage.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Lake_Powell_surface_area_shrinkage.svg/440px-Lake_Powell_surface_area_shrinkage.svg.png 2x" data-file-width="512" data-file-height="543" /></a><figcaption>Lake Powell surface area shrinkage</figcaption></figure> <p>Colorado River flows have been below average since 2000 as a result of the <a href="/wiki/Southwestern_North_American_megadrought" title="Southwestern North American megadrought">southwestern North American megadrought</a>, leading to lower lake levels. In winter 2005 (before the spring run-off) the lake reached its then-lowest level since filling, an elevation of 3,555.10 feet (1,083.59 m)<sup id="cite_ref-data_9-1" class="reference"><a href="#cite_note-data-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> above sea level, which was approximately 150 feet (46 m) below full pool. After 2005, the lake level slowly rebounded, although it has not filled completely since then. Summer 2011 saw the third largest June and the second largest July runoff since the closure of Glen Canyon Dam, and the water level peaked at nearly 3,661 feet (1,116 m), 77 percent of capacity, on July 30.<sup id="cite_ref-data_9-2" class="reference"><a href="#cite_note-data-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> However, water years 2012 and 2013 were, respectively, the third and fourth-lowest runoff years recorded on the Colorado River. By April 9, 2014, the lake level had fallen to 3,574.31 feet (1,089.45 m), largely erasing the gains made in 2011.<sup id="cite_ref-data_9-3" class="reference"><a href="#cite_note-data-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>Colorado River levels returned to normal during water years 2014 and 2015 (pushing the lake to 3,606 feet (1,099 m)) by the end of water year 2015.<sup id="cite_ref-data_9-4" class="reference"><a href="#cite_note-data-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> The Bureau of Reclamation in 2014 reduced the Lake Powell release from 8.23 to 7.48 million acre-feet, for the first time since the lake filled in 1980. This was done due to the "equalization" guideline which stipulates that an approximately equal amount of water must be retained in both Lake Powell and <a href="/wiki/Lake_Mead" title="Lake Mead">Lake Mead</a>, in order to preserve hydro-power generation capacity at both lakes. This resulted in Lake Mead declining to the lowest level on record since the 1930s. </p><p>Long-term water level decline continued, forcing an emergency release of water from the <a href="/wiki/Flaming_Gorge_Reservoir" title="Flaming Gorge Reservoir">Flaming Gorge Reservoir</a> in July 2021.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> and by April 22, 2022, Lake Powell was at 3,522.24 feet (1,073.58 m) in elevation – just <span data-sort-value="7001228823054915362♠" style="display:none"></span>22.88% of capacity. This marks the lowest water level for Lake Powell since it was filled in 1963.<sup id="cite_ref-Reclamation_11-0" class="reference"><a href="#cite_note-Reclamation-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p><p>The capacity of Lake Powell has decreased by 7% since 1963 facing an average annual loss of 33,270 acre-feet of storage, due to the inflow of sediments from Colorado and San Juan rivers.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p><p>Peer-reviewed studies indicate that storing water in Lake Mead rather than in Lake Powell would yield a savings of 300,000 acre feet of water or more per year, leading to calls by environmentalists to drain Lake Powell and restore Glen Canyon to its natural, free-flowing state.<sup id="cite_ref-:0_3-1" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:1_4-1" class="reference"><a href="#cite_note-:1-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:2_5-1" class="reference"><a href="#cite_note-:2-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Climate">Climate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=6" title="Edit section: Climate"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>These data are for the <a href="/wiki/Wahweap,_Arizona" title="Wahweap, Arizona">Wahweap</a> climate station on Lake Powell just south of the Utah-Arizona border (Years 1961 to 2012). </p> <div> <table class="wikitable mw-collapsible" style="width:55%; text-align:center; line-height:1.2em;"> <tbody><tr> <th colspan="14">Climate data for Wahweap, AZ </th></tr> <tr> <th scope="row">Month </th> <th scope="col">Jan </th> <th scope="col">Feb </th> <th scope="col">Mar </th> <th scope="col">Apr </th> <th scope="col">May </th> <th scope="col">Jun </th> <th scope="col">Jul </th> <th scope="col">Aug </th> <th scope="col">Sep </th> <th scope="col">Oct </th> <th scope="col">Nov </th> <th scope="col">Dec </th> <th scope="col" style="border-left-width:medium">Year </th></tr> <tr style="text-align: center;"> <th scope="row" style="height: 16px;">Record high °F (°C) </th> <td style="background: #FF8D1B; color:#000000;" class="notheme">69<br />(21) </td> <td style="background: #FF6A00; color:#000000;" class="notheme">78<br />(26) </td> <td style="background: #FF5600; color:#000000;" class="notheme">85<br />(29) </td> <td style="background: #FF3300; color:#000000;" class="notheme">94<br />(34) </td> <td style="background: #FF0A00; color:#FFFFFF;" class="notheme">104<br />(40) </td> <td style="background: #EA0000; color:#FFFFFF;" class="notheme">110<br />(43) </td> <td style="background: #970000; color:#FFFFFF;" class="notheme">120<br />(49) </td> <td style="background: #C00000; color:#FFFFFF;" class="notheme">115<br />(46) </td> <td style="background: #FF0300; color:#FFFFFF;" class="notheme">105<br />(41) </td> <td style="background: #FF2500; color:#000000;" class="notheme">96<br />(36) </td> <td style="background: #FF6300; color:#000000;" class="notheme">80<br />(27) </td> <td style="background: #FF8D1B; color:#000000;" class="notheme">70<br />(21) </td> <td style="background: #970000; color:#FFFFFF; border-left-width:medium" class="notheme">120<br />(49) </td></tr> <tr style="text-align: center;"> <th scope="row" style="height: 16px;">Mean daily maximum °F (°C) </th> <td style="background: #FFE4C9; color:#000000;" class="notheme">47.2<br />(8.4) </td> <td style="background: #FFCA96; color:#000000;" class="notheme">53.8<br />(12.1) </td> <td style="background: #FFA74F; color:#000000;" class="notheme">63.0<br />(17.2) </td> <td style="background: #FF8104; color:#000000;" class="notheme">72.8<br />(22.7) </td> <td style="background: #FF5700; color:#000000;" class="notheme">83.8<br />(28.8) </td> <td style="background: #FF3000; color:#000000;" class="notheme">94.1<br />(34.5) </td> <td style="background: #FF1E00; color:#000000;" class="notheme">98.8<br />(37.1) </td> <td style="background: #FF2A00; color:#000000;" class="notheme">95.7<br />(35.4) </td> <td style="background: #FF4900; color:#000000;" class="notheme">87.7<br />(30.9) </td> <td style="background: #FF7E00; color:#000000;" class="notheme">73.7<br />(23.2) </td> <td style="background: #FFB973; color:#000000;" class="notheme">58.3<br />(14.6) </td> <td style="background: #FFE4C9; color:#000000;" class="notheme">47.1<br />(8.4) </td> <td style="background: #FF8002; color:#000000; border-left-width:medium" class="notheme">73.0<br />(22.8) </td></tr> <tr style="text-align: center;"> <th scope="row" style="height: 16px;">Mean daily minimum °F (°C) </th> <td style="background: #D7D7FF; color:#000000;" class="notheme">26.9<br />(−2.8) </td> <td style="background: #E6E6FF; color:#000000;" class="notheme">31.8<br />(−0.1) </td> <td style="background: #F7F7FF; color:#000000;" class="notheme">37.8<br />(3.2) </td> <td style="background: #FFEDDC; color:#000000;" class="notheme">44.6<br />(7.0) </td> <td style="background: #FFC68D; color:#000000;" class="notheme">54.9<br />(12.7) </td> <td style="background: #FFA347; color:#000000;" class="notheme">64.1<br />(17.8) </td> <td style="background: #FF8710; color:#000000;" class="notheme">71.3<br />(21.8) </td> <td style="background: #FF8F1F; color:#000000;" class="notheme">69.3<br />(20.7) </td> <td style="background: #FFB061; color:#000000;" class="notheme">60.7<br />(15.9) </td> <td style="background: #FFDDBB; color:#000000;" class="notheme">48.9<br />(9.4) </td> <td style="background: #F5F5FF; color:#000000;" class="notheme">36.9<br />(2.7) </td> <td style="background: #D8D8FF; color:#000000;" class="notheme">27.4<br />(−2.6) </td> <td style="background: #FFE1C3; color:#000000; border-left-width:medium" class="notheme">47.9<br />(8.8) </td></tr> <tr style="text-align: center;"> <th scope="row" style="height: 16px;">Record low °F (°C) </th> <td style="background: #8080FF; color:#000000;" class="notheme">−2<br />(−19) </td> <td style="background: #9090FF; color:#000000;" class="notheme">4<br />(−16) </td> <td style="background: #C6C6FF; color:#000000;" class="notheme">21<br />(−6) </td> <td style="background: #B6B6FF; color:#000000;" class="notheme">16<br />(−9) </td> <td style="background: #DBDBFF; color:#000000;" class="notheme">29<br />(−2) </td> <td style="background: #FCFCFF; color:#000000;" class="notheme">40<br />(4) </td> <td style="background: #FFDFC0; color:#000000;" class="notheme">48<br />(9) </td> <td style="background: #FFD2A5; color:#000000;" class="notheme">51<br />(11) </td> <td style="background: #F1F1FF; color:#000000;" class="notheme">36<br />(2) </td> <td style="background: #D1D1FF; color:#000000;" class="notheme">24<br />(−4) </td> <td style="background: #B6B6FF; color:#000000;" class="notheme">15<br />(−9) </td> <td style="background: #9090FF; color:#000000;" class="notheme">3<br />(−16) </td> <td style="background: #8080FF; color:#000000; border-left-width:medium" class="notheme">−2<br />(−19) </td></tr> <tr style="text-align: center;"> <th scope="row" style="height: 16px;">Average <a href="/wiki/Precipitation" title="Precipitation">precipitation</a> inches (mm) </th> <td style="background: #E8FFE8; color:#000000;" class="notheme">0.59<br />(15) </td> <td style="background: #E8FFE8; color:#000000;" class="notheme">0.56<br />(14) </td> <td style="background: #E7FFE7; color:#000000;" class="notheme">0.63<br />(16) </td> <td style="background: #F0FFF0; color:#000000;" class="notheme">0.37<br />(9.4) </td> <td style="background: #F1FFF1; color:#000000;" class="notheme">0.36<br />(9.1) </td> <td style="background: #F8FFF8; color:#000000;" class="notheme">0.17<br />(4.3) </td> <td style="background: #EBFFEB; color:#000000;" class="notheme">0.51<br />(13) </td> <td style="background: #E2FFE2; color:#000000;" class="notheme">0.75<br />(19) </td> <td style="background: #E7FFE7; color:#000000;" class="notheme">0.59<br />(15) </td> <td style="background: #DEFFDE; color:#000000;" class="notheme">0.85<br />(22) </td> <td style="background: #E9FFE9; color:#000000;" class="notheme">0.57<br />(14) </td> <td style="background: #F0FFF0; color:#000000;" class="notheme">0.41<br />(10) </td> <td style="background: #EAFFEA; color:#000000; border-left-width:medium" class="notheme">6.36<br />(160.8) </td></tr> <tr style="text-align: center;"> <th scope="row" style="height: 16px;">Average snowfall inches (cm) </th> <td style="background: #F7F7FF; color:#000000;" class="notheme">0.2<br />(0.51) </td> <td style="background: #F6F6FF; color:#000000;" class="notheme">0.2<br />(0.51) </td> <td style="background: #FFFFFF; color:#000000;" class="notheme">0<br />(0) </td> <td style="background: #FFFFFF; color:#000000;" class="notheme">0<br />(0) </td> <td style="background: #FFFFFF; color:#000000;" class="notheme">0<br />(0) </td> <td style="background: #FFFFFF; color:#000000;" class="notheme">0<br />(0) </td> <td style="background: #FFFFFF; color:#000000;" class="notheme">0<br />(0) </td> <td style="background: #FFFFFF; color:#000000;" class="notheme">0<br />(0) </td> <td style="background: #FFFFFF; color:#000000;" class="notheme">0<br />(0) </td> <td style="background: #FFFFFF; color:#000000;" class="notheme">0<br />(0) </td> <td style="background: #FFFFFF; color:#000000;" class="notheme">0<br />(0) </td> <td style="background: #F3F3FF; color:#000000;" class="notheme">0.3<br />(0.76) </td> <td style="background: #FCFCFF; color:#000000; border-left-width:medium" class="notheme">0.7<br />(1.78) </td></tr> <tr> <td colspan="14" style="text-align:center;font-size:95%;">Source: <a rel="nofollow" class="external free" href="http://www.wrcc.dri.edu/cgi-bin/cliMAIN.pl?az9114">http://www.wrcc.dri.edu/cgi-bin/cliMAIN.pl?az9114</a> </td></tr></tbody></table> </div> <div class="mw-heading mw-heading2"><h2 id="Geology">Geology</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=7" title="Edit section: Geology"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Glen Canyon was carved by <a href="/wiki/Differential_erosion" class="mw-redirect" title="Differential erosion">differential erosion</a> from the Colorado River over an estimated 5 million years. The <a href="/wiki/Colorado_Plateau" title="Colorado Plateau">Colorado Plateau</a>, through which the canyon cuts, arose some 11 million years ago. Within that plateau lie layers of rock from over 300 million years ago to the relatively recent volcanic activity. <a href="/wiki/Pennsylvanian_(geology)" title="Pennsylvanian (geology)">Pennsylvanian</a> and <a href="/wiki/Permian" title="Permian">Permian</a> formations can be seen in <a href="/wiki/Cataract_Canyon" title="Cataract Canyon">Cataract Canyon</a> and <a href="/wiki/San_Juan_Canyon" class="mw-redirect" title="San Juan Canyon">San Juan Canyon</a>. The <a href="/wiki/Moenkopi_Formation" title="Moenkopi Formation">Moenkopi Formation</a>, which dates from 230 million years ago (<a href="/wiki/Triassic_Period" class="mw-redirect" title="Triassic Period">Triassic Period</a>), and the <a href="/wiki/Chinle_Formation" title="Chinle Formation">Chinle Formation</a> are found at Lees Ferry and the Rincon. Both formations are the result of the ancient inland sea that covered the area. Once the sea drained, windblown sand invaded the area, creating what is known as <a href="/wiki/Wingate_Sandstone" title="Wingate Sandstone">Wingate Sandstone</a>. </p><p>The more recent (<a href="/wiki/Jurassic_Period" class="mw-redirect" title="Jurassic Period">Jurassic Period</a>) formations include <a href="/wiki/Kayenta_Sandstone" class="mw-redirect" title="Kayenta Sandstone">Kayenta Sandstone</a>, which produces the trademark blue-black "desert varnish" that streaks down many walls of the canyons. Above this is <a href="/wiki/Navajo_Sandstone" title="Navajo Sandstone">Navajo Sandstone</a>. Many of the arches, including Rainbow Bridge, lie at this transition point. This period also includes light yellow <a href="/wiki/Entrada_Sandstone" title="Entrada Sandstone">Entrada Sandstone</a>, and the dark brown, almost purple <a href="/wiki/Carmel_Formation" title="Carmel Formation">Carmel Formation</a>. These latter two can be seen on the tops of mesas around <a href="/wiki/Wahweap,_Lake_Powell" class="mw-redirect" title="Wahweap, Lake Powell">Wahweap</a>, and the crown of Castle Rock and <a href="/wiki/Tower_Butte" title="Tower Butte">Tower Butte</a>. Above these layers lie the <a href="/wiki/Sandstone" title="Sandstone">sandstone</a>, <a href="/wiki/Conglomerate_(geology)" title="Conglomerate (geology)">conglomerate</a> and <a href="/wiki/Shale" title="Shale">shale</a> of the <a href="/wiki/Straight_Cliffs_Formation" title="Straight Cliffs Formation">Straight Cliffs Formation</a> that underlies the <a href="/wiki/Kaiparowits_Plateau" title="Kaiparowits Plateau">Kaiparowits Plateau</a> and <a href="/wiki/San_Rafael_Swell" title="San Rafael Swell">San Rafael Swell</a> to the north of the lake. </p><p>The confluences of the <a href="/wiki/Escalante_River" title="Escalante River">Escalante</a>, <a href="/wiki/Dirty_Devil_River" title="Dirty Devil River">Dirty Devil</a> and <a href="/wiki/San_Juan_River_(Colorado_River)" class="mw-redirect" title="San Juan River (Colorado River)">San Juan</a> rivers with the Colorado lie within Lake Powell. The slower flow of the San Juan river has produced <a href="/wiki/Incised_meanders" class="mw-redirect" title="Incised meanders">goosenecks</a> where 5 miles (8.0 km) of river are contained within 1-mile (1.6 km) on a straight line. </p> <div class="mw-heading mw-heading2"><h2 id="Landmarks_and_features">Landmarks and features</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=8" title="Edit section: Landmarks and features"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Lake_Powell_Map.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2e/Lake_Powell_Map.jpg/280px-Lake_Powell_Map.jpg" decoding="async" width="280" height="302" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2e/Lake_Powell_Map.jpg/420px-Lake_Powell_Map.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2e/Lake_Powell_Map.jpg/560px-Lake_Powell_Map.jpg 2x" data-file-width="2534" data-file-height="2733" /></a><figcaption>Area features, click to enlarge</figcaption></figure><p>The lake's main body stretches up Glen Canyon, but has also filled many (over 90) side canyons. The lake also stretches up the Escalante River and San Juan River where they merge into the main Colorado River. This provides access to many natural geographic points of interest as well as some remnants of the <a href="/wiki/Anasazi" class="mw-redirect" title="Anasazi">Anasazi</a> culture. </p><ul><li><a href="/wiki/Glen_Canyon_Dam" title="Glen Canyon Dam">Glen Canyon Dam</a>, the dam the blocks the Colorado River and forms Lake Powell. (Arizona)</li> <li><a href="/wiki/Rainbow_Bridge_National_Monument" title="Rainbow Bridge National Monument">Rainbow Bridge</a>, one of the world's largest natural bridges. (Utah)</li> <li><a href="/wiki/Hite_Crossing_Bridge" title="Hite Crossing Bridge">Hite Crossing Bridge</a>, the only bridge spanning Lake Powell. Although the bridge informally marks the upstream limit of the lake, when the lake is at its normal high water elevation, backwater can stretch up to 30 miles (48 km) upstream into <a href="/wiki/Cataract_Canyon" title="Cataract Canyon">Cataract Canyon</a>.</li> <li>Defiance House ruin (Anasazi)</li> <li><a href="/wiki/Castle_Rock_(Utah)" title="Castle Rock (Utah)">Castle Rock</a></li> <li><a href="/wiki/Cathedral_in_the_Desert" title="Cathedral in the Desert">Cathedral in the Desert</a></li> <li><a href="/wiki/Goosenecks_State_Park" title="Goosenecks State Park">San Juan goosenecks</a></li> <li><a href="/wiki/Gregory_Butte" title="Gregory Butte">Gregory Butte</a></li> <li><a href="/wiki/Gunsight_Butte" title="Gunsight Butte">Gunsight Butte</a></li> <li><a href="/wiki/Lone_Rock_(Glen_Canyon_National_Recreation_Area)" title="Lone Rock (Glen Canyon National Recreation Area)">Lone Rock</a></li> <li><a href="/wiki/Alstrom_Point" title="Alstrom Point">Alstrom Point</a></li> <li><a href="/wiki/Kaiparowits_Plateau" title="Kaiparowits Plateau">Kaiparowits Plateau</a></li> <li><a href="/wiki/Hole_in_the_Rock_(rock_formation)" title="Hole in the Rock (rock formation)">Hole-in-the-Rock crossing</a></li> <li>the Rincon</li> <li>Three-Roof Ruin</li> <li><a href="/wiki/Padre_Bay" title="Padre Bay">Padre Bay</a></li> <li><a href="/wiki/Waterpocket_Fold" title="Waterpocket Fold">Waterpocket Fold</a></li> <li><a href="/w/index.php?title=Antelope_Island_(Lake_Powell)&action=edit&redlink=1" class="new" title="Antelope Island (Lake Powell) (page does not exist)">Antelope Island</a> lies mostly in Arizona just north of <a href="/wiki/Page,_Arizona" title="Page, Arizona">Page</a> in the southwest part of Lake Powell.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Images">Images</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=9" title="Edit section: Images"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul class="gallery mw-gallery-traditional" style="max-width: 652px;"> <li class="gallerycaption">Lake Powell</li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Lake_Powell_SW01.jpg" class="mw-file-description" title="Lake Powell Dam and bridge"><img alt="Lake Powell Dam and bridge" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Lake_Powell_SW01.jpg/120px-Lake_Powell_SW01.jpg" decoding="async" width="120" height="71" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Lake_Powell_SW01.jpg/180px-Lake_Powell_SW01.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Lake_Powell_SW01.jpg/240px-Lake_Powell_SW01.jpg 2x" data-file-width="2145" data-file-height="1277" /></a></span></div> <div class="gallerytext">Lake Powell Dam and bridge</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Lake_Powell_-_Arizona.JPG" class="mw-file-description" title="Lake Powell in 2007"><img alt="Lake Powell in 2007" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d3/Lake_Powell_-_Arizona.JPG/120px-Lake_Powell_-_Arizona.JPG" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d3/Lake_Powell_-_Arizona.JPG/180px-Lake_Powell_-_Arizona.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d3/Lake_Powell_-_Arizona.JPG/240px-Lake_Powell_-_Arizona.JPG 2x" data-file-width="2240" data-file-height="1680" /></a></span></div> <div class="gallerytext">Lake Powell in 2007</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:LakePowell3.jpg" class="mw-file-description" title="Lake Powell, looking southwest at sunrise"><img alt="Lake Powell, looking southwest at sunrise" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a9/LakePowell3.jpg/120px-LakePowell3.jpg" decoding="async" width="120" height="77" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a9/LakePowell3.jpg/180px-LakePowell3.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a9/LakePowell3.jpg/240px-LakePowell3.jpg 2x" data-file-width="930" data-file-height="600" /></a></span></div> <div class="gallerytext">Lake Powell, looking southwest at sunrise</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Lake_Powell_Landscape.jpg" class="mw-file-description" title="Lake Powell in Arizona. The dam is under the arch bridge (upper right end of the water)"><img alt="Lake Powell in Arizona. The dam is under the arch bridge (upper right end of the water)" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Lake_Powell_Landscape.jpg/120px-Lake_Powell_Landscape.jpg" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Lake_Powell_Landscape.jpg/180px-Lake_Powell_Landscape.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Lake_Powell_Landscape.jpg/240px-Lake_Powell_Landscape.jpg 2x" data-file-width="1280" data-file-height="960" /></a></span></div> <div class="gallerytext">Lake Powell in Arizona. The dam is under the arch bridge (upper right end of the water)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Lac_Powell_2016_Aerial_view_on_Tower_Butte.jpg" class="mw-file-description" title="Aerial view of Tower Butte Arizona"><img alt="Aerial view of Tower Butte Arizona" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Lac_Powell_2016_Aerial_view_on_Tower_Butte.jpg/120px-Lac_Powell_2016_Aerial_view_on_Tower_Butte.jpg" decoding="async" width="120" height="114" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Lac_Powell_2016_Aerial_view_on_Tower_Butte.jpg/180px-Lac_Powell_2016_Aerial_view_on_Tower_Butte.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Lac_Powell_2016_Aerial_view_on_Tower_Butte.jpg/240px-Lac_Powell_2016_Aerial_view_on_Tower_Butte.jpg 2x" data-file-width="1852" data-file-height="1755" /></a></span></div> <div class="gallerytext">Aerial view of <a href="/wiki/Tower_Butte" title="Tower Butte">Tower Butte</a> Arizona</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Utah_Rainbow_Arch.jpg" class="mw-file-description" title="Rainbow Bridge"><img alt="Rainbow Bridge" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Utah_Rainbow_Arch.jpg/120px-Utah_Rainbow_Arch.jpg" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Utah_Rainbow_Arch.jpg/180px-Utah_Rainbow_Arch.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Utah_Rainbow_Arch.jpg/240px-Utah_Rainbow_Arch.jpg 2x" data-file-width="800" data-file-height="600" /></a></span></div> <div class="gallerytext">Rainbow Bridge</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Lake_Powell_and_Grand_Staircase-Escalante.jpg" class="mw-file-description" title="Lake Powell and Grand Staircase–Escalante from space, 2016"><img alt="Lake Powell and Grand Staircase–Escalante from space, 2016" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/61/Lake_Powell_and_Grand_Staircase-Escalante.jpg/120px-Lake_Powell_and_Grand_Staircase-Escalante.jpg" decoding="async" width="120" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/61/Lake_Powell_and_Grand_Staircase-Escalante.jpg/180px-Lake_Powell_and_Grand_Staircase-Escalante.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/61/Lake_Powell_and_Grand_Staircase-Escalante.jpg/240px-Lake_Powell_and_Grand_Staircase-Escalante.jpg 2x" data-file-width="4000" data-file-height="2667" /></a></span></div> <div class="gallerytext">Lake Powell and <a href="/wiki/Grand_Staircase%E2%80%93Escalante" class="mw-redirect" title="Grand Staircase–Escalante">Grand Staircase–Escalante</a> from space, 2016</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Lake_Powell_mosaic_from_ISS.jpeg" class="mw-file-description" title="Lake Powell from space, 2016"><img alt="Lake Powell from space, 2016" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Lake_Powell_mosaic_from_ISS.jpeg/43px-Lake_Powell_mosaic_from_ISS.jpeg" decoding="async" width="43" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Lake_Powell_mosaic_from_ISS.jpeg/65px-Lake_Powell_mosaic_from_ISS.jpeg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Lake_Powell_mosaic_from_ISS.jpeg/87px-Lake_Powell_mosaic_from_ISS.jpeg 2x" data-file-width="720" data-file-height="1982" /></a></span></div> <div class="gallerytext">Lake Powell from <a href="/wiki/International_Space_Station" title="International Space Station">space</a>, 2016</div> </li> </ul> <div class="mw-heading mw-heading2"><h2 id="Development">Development</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=10" title="Edit section: Development"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Lake_Powell,_Near_Page_Arizona_(3449612604).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Lake_Powell%2C_Near_Page_Arizona_%283449612604%29.jpg/220px-Lake_Powell%2C_Near_Page_Arizona_%283449612604%29.jpg" decoding="async" width="220" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Lake_Powell%2C_Near_Page_Arizona_%283449612604%29.jpg/330px-Lake_Powell%2C_Near_Page_Arizona_%283449612604%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Lake_Powell%2C_Near_Page_Arizona_%283449612604%29.jpg/440px-Lake_Powell%2C_Near_Page_Arizona_%283449612604%29.jpg 2x" data-file-width="2732" data-file-height="1821" /></a><figcaption>Recreational boating and waterskiing spot in Lake Powell, near Page, Arizona. (<a href="/wiki/Castle_Rock_(Utah)" title="Castle Rock (Utah)">Castle Rock</a> far right)</figcaption></figure> <p>Access to the lake is limited to developed marinas because most of the lake is surrounded by steep sandstone walls: </p> <ul><li><a href="/wiki/Lee%27s_Ferry" class="mw-redirect" title="Lee's Ferry">Lee's Ferry</a></li> <li><a href="/wiki/Page,_Arizona" title="Page, Arizona">Page</a> and <a href="/wiki/Wahweap,_Lake_Powell" class="mw-redirect" title="Wahweap, Lake Powell">Wahweap</a> Marina</li> <li>Antelope Point Marina</li> <li><a href="/wiki/Halls_Crossing,_Utah" title="Halls Crossing, Utah">Halls Crossing, Utah</a> Marina</li> <li><a href="/wiki/Bullfrog_Marina" class="mw-redirect" title="Bullfrog Marina">Bullfrog Marina</a></li> <li><a href="/wiki/Hite,_Lake_Powell" class="mw-redirect" title="Hite, Lake Powell">Hite Marina</a></li></ul> <p>The following marinas are accessible only by boat: </p> <ul><li>Dangling Rope Marina</li> <li><a href="/wiki/Rainbow_Bridge_National_Monument" title="Rainbow Bridge National Monument">Rainbow Bridge National Monument</a></li> <li>Escalante Subdistrict</li></ul> <p>Glen Canyon National Recreation Area draws more than two million visitors annually. Recreational activities include <a href="/wiki/Boating" title="Boating">boating</a>, <a href="/wiki/Fishing" title="Fishing">fishing</a>, <a href="/wiki/Waterskiing" class="mw-redirect" title="Waterskiing">waterskiing</a>, <a href="/wiki/Personal_water_craft" class="mw-redirect" title="Personal water craft">jet-skiing</a>, and hiking. Prepared campgrounds can be found at each marina, but many visitors choose to rent a <a href="/wiki/Houseboat" title="Houseboat">houseboat</a> or bring their own camping equipment, find a secluded spot somewhere in the canyons, and make their own camp (there are no restrictions on where visitors can stay). </p><p>The Castle Rock Cut is one of the most important navigational channels in the lake; it was blasted as early as the 1970s to allow boaters to bypass the winding canyons between the Glen Canyon Dam and reaches of Lake Powell further upstream – saving, on average, one hour of travel time. The cut has been deepened several times since then, to allow the use of the channel during droughts.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> During the protracted 21st-century drought, however, the lake has dropped so quickly on several occasions that the cut dried up during the summer tourist season, most recently in 2013. Continued deepening of the Castle Rock cut has been criticized for its high cost, but boaters and the National Park Service argue that it improves safety, saves millions of dollars in fuel, and improves emergency response time.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> In September 2021 the level of Lake Powell was 45 feet below the bottom of the Castle Rock cut.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p><p>Currently,<sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Manual_of_Style/Dates_and_numbers#Chronological_items" title="Wikipedia:Manual of Style/Dates and numbers"><span title="The time period mentioned near this tag is ambiguous. (September 2023)">when?</span></a></i>]</sup> most marinas on the lake don't have <a href="/wiki/Automatic_Identification_System" class="mw-redirect" title="Automatic Identification System">Automatic Identification System</a> monitoring stations that transmit boat positions to the AIS websites for the boating community. A substantial number of vessels on the lake do not have AIS transponders as there currently<sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Manual_of_Style/Dates_and_numbers#Chronological_items" title="Wikipedia:Manual of Style/Dates and numbers"><span title="The time period mentioned near this tag is ambiguous. (September 2023)">when?</span></a></i>]</sup> are no mandatory requirements for AIS usage for this body of water. Extra precautions must be taken with respect to boating safety, as the <a href="/wiki/Fractal" title="Fractal">fractal</a> nature of the lake's hydrologic surface area can allow vessels with limited charting equipment to become easily lost. </p><p>The burying of human (and pet) waste in Glen Canyon National Recreation Area is prohibited. Anyone who camps farther than a quarter of a mile from a marina must bring a <a href="/wiki/Portable_toilet" title="Portable toilet">portable toilet</a>. Pet waste must also be packed out. </p><p>The southwestern end of Lake Powell in Arizona can be accessed via <a href="/wiki/U.S._Route_89_(Arizona)" class="mw-redirect" title="U.S. Route 89 (Arizona)">U.S. Route 89</a> and <a href="/wiki/Arizona_State_Route_98" title="Arizona State Route 98">State Route 98</a>. <a href="/wiki/Utah_State_Route_95" title="Utah State Route 95">State Route 95</a> and <a href="/wiki/Utah_State_Route_276" title="Utah State Route 276">State Route 276</a> lead to the northeastern end of the lake in Utah. </p> <div class="mw-heading mw-heading2"><h2 id="Fish_species">Fish species</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=11" title="Edit section: Fish species"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Some of these fish species are on the US Endangered Species List. Currently most native species on the Colorado River Basin are subject to ongoing restoration efforts of some kind. </p><p>Bass </p> <ul><li><a href="/wiki/Smallmouth_bass" title="Smallmouth bass">Smallmouth bass</a></li> <li><a href="/wiki/Largemouth_bass" title="Largemouth bass">Largemouth bass</a></li> <li><a href="/wiki/Striped_bass" title="Striped bass">Striped bass</a></li></ul> <p>Carp, pike and others </p> <ul><li><a href="/wiki/Crappie" title="Crappie">Crappie</a></li> <li><a href="/wiki/Centrarchidae" title="Centrarchidae">Sunfish</a></li> <li><a href="/wiki/Channel_catfish" title="Channel catfish">Channel catfish</a></li> <li><a href="/wiki/Northern_pike" title="Northern pike">Northern pike</a></li> <li><a href="/wiki/Walleye" title="Walleye">Walleye</a></li> <li><a href="/wiki/Common_carp" title="Common carp">Common carp</a></li> <li><a href="/wiki/Razorback_sucker" title="Razorback sucker">Razorback sucker</a></li> <li><a href="/wiki/Brown_trout" title="Brown trout">Brown trout</a></li> <li><a href="/wiki/Bonytail_chub" title="Bonytail chub">Bonytail chub</a></li> <li><a href="/wiki/Gizzard_shad" class="mw-redirect" title="Gizzard shad">Gizzard shad</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Invasive_species">Invasive species</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=12" title="Edit section: Invasive species"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-Update plainlinks metadata ambox ambox-content ambox-Update" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/Ambox_current_red_Americas.svg/42px-Ambox_current_red_Americas.svg.png" decoding="async" width="42" height="34" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/Ambox_current_red_Americas.svg/63px-Ambox_current_red_Americas.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/53/Ambox_current_red_Americas.svg/84px-Ambox_current_red_Americas.svg.png 2x" data-file-width="360" data-file-height="290" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section needs to be <b>updated</b>.<span class="hide-when-compact"> Please help update this article to reflect recent events or newly available information.</span> <span class="date-container"><i>(<span class="date">February 2020</span>)</i></span></div></td></tr></tbody></table> <p><a href="/wiki/Zebra_mussel" title="Zebra mussel">Zebra</a> and <a href="/wiki/Quagga_mussel" title="Quagga mussel">quagga mussels</a> first appeared in the United States in the 1980s.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p><p>The mussels were initially brought to the United States through the ballast water of ships entering the Great Lakes. These aquatic invaders soon spread to many bodies of water in the Eastern United States and have even made their way to the western United States. In January 2008,<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> Zebra mussels have been detected in several reservoirs along the Colorado River system such as Lakes Mead, Mojave, and Havasu. </p><p>By the early 2000s <a href="/wiki/Arizona" title="Arizona">Arizona</a>, <a href="/wiki/California" title="California">California</a>, <a href="/wiki/Nebraska" title="Nebraska">Nebraska</a>, <a href="/wiki/Kansas" title="Kansas">Kansas</a>, <a href="/wiki/Colorado" title="Colorado">Colorado</a>, <a href="/wiki/Nevada" title="Nevada">Nevada</a> and <a href="/wiki/Utah" title="Utah">Utah</a> have all confirmed the presence of larval zebra mussels in lakes and reservoirs. </p><p>Zebra and quagga mussels can be destructive to an ecosystem due to competition for resources with native species. The filtration of zooplankton by the mussels can negatively impact the feeding for some species of fish. Zebra and quagga mussels can attach to hard surfaces and build layers on underwater structures. The mussels are known to clog pipes including those in hydroelectric power systems, thus becoming a costly and time-consuming problem for water managers in the West. </p><p>Control policies have recently been introduced to alleviate the hydroelectric problems as well as ecological problems faced by Western infestation. Beginning in 1999 Lake Powell began to visually monitor for the mussels. </p><p>In 2001 hot water boat decontamination sites were established at Wahweap, Bullfrog, and Halls Crossing marinas. In January 2007, zebra mussels were detected in Lake Mead and new action plans were announced to prevent the spread of mussels to Lake Powell. In August 2007, preliminary testing was positive for zebra or quagga larvae in Lake Powell. These tests were deemed false positives, but adult quagga mussels were found in 2013. </p><p>In August 2010, Lake Powell was declared mussel free.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (February 2020)">citation needed</span></a></i>]</sup> Lake Powell introduced a mandatory boat inspection for each watercraft entering the reservoir beginning in June 2009. Effective June 29, 2009, every vessel entering Lake Powell must have a mussel certificate, although boat owners were allowed to self-certify. These measures were intended to help prevent vessels from transporting Zebra mussels into Lake Powell. </p><p>Despite these measures, quagga mussel DNA was detected in 2012 and live mussels were found at a number of sites including the Wahweap Marina in Spring and Summer 2013. In June 2013 the NPS was attempting a diver-based eradication program to find and remove mussels before the lake became infested.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (February 2020)">citation needed</span></a></i>]</sup> </p> <div class="mw-heading mw-heading2"><h2 id="Pipeline_proposal">Pipeline proposal</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=13" title="Edit section: Pipeline proposal"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <a href="/wiki/Washington_County_Water_Conservancy_District" title="Washington County Water Conservancy District">Washington County Water Conservancy District</a> has proposed building the <a href="/wiki/Washington_County_Water_Conservancy_District#Lake_Powell_Pipeline" title="Washington County Water Conservancy District">Lake Powell Pipeline</a>, which would have the capacity to extract up to 83,756 acre-feet (103,312,000 m<sup>3</sup>) per year from Lake Powell for distribution to municipal drinking water systems in the county.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=14" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-lakepowell-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-lakepowell_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-lakepowell_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-lakepowell_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-lakepowell_1-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://lakepowell.water-data.com/">"Lake Powell Water Database"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Lake+Powell+Water+Database&rft_id=https%3A%2F%2Flakepowell.water-data.com%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFRachel_Ramirez2022" class="citation web cs1">Rachel Ramirez (21 March 2022). <a rel="nofollow" class="external text" href="https://www.cnn.com/2022/03/21/us/lake-powell-capacity-shrinking-drought-climate/index.html">"Not only is Lake Powell's water level plummeting because of drought, its total capacity is shrinking, too"</a>. <i>CNN</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2022-08-04</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=CNN&rft.atitle=Not+only+is+Lake+Powell%27s+water+level+plummeting+because+of+drought%2C+its+total+capacity+is+shrinking%2C+too&rft.date=2022-03-21&rft.au=Rachel+Ramirez&rft_id=https%3A%2F%2Fwww.cnn.com%2F2022%2F03%2F21%2Fus%2Flake-powell-capacity-shrinking-drought-climate%2Findex.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-:0-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-:0_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:0_3-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.grandcanyontrust.org/advocatemag/fall-winter-2015/future-lake-powell">"The Future of Lake Powell"</a>. <i>Grand Canyon Trust</i>. 2015-09-04<span class="reference-accessdate">. Retrieved <span class="nowrap">2024-02-24</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Grand+Canyon+Trust&rft.atitle=The+Future+of+Lake+Powell&rft.date=2015-09-04&rft_id=https%3A%2F%2Fwww.grandcanyontrust.org%2Fadvocatemag%2Ffall-winter-2015%2Ffuture-lake-powell&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-:1-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-:1_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:1_4-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://ktla.com/news/push-to-drain-lake-powell-gaining-momentum/">"Push to drain Lake Powell gaining momentum"</a>. <i>KTLA</i>. 2023-09-19<span class="reference-accessdate">. Retrieved <span class="nowrap">2024-02-24</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=KTLA&rft.atitle=Push+to+drain+Lake+Powell+gaining+momentum&rft.date=2023-09-19&rft_id=https%3A%2F%2Fktla.com%2Fnews%2Fpush-to-drain-lake-powell-gaining-momentum%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-:2-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-:2_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:2_5-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWriterAssignment2023" class="citation web cs1">Writer, Anna Skinner Senior; Assignment, General (2023-08-10). <a rel="nofollow" class="external text" href="https://www.newsweek.com/inside-plan-completely-drain-lake-powell-1819013">"Inside a plan to completely drain Lake Powell"</a>. <i>Newsweek</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2024-02-24</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Newsweek&rft.atitle=Inside+a+plan+to+completely+drain+Lake+Powell&rft.date=2023-08-10&rft.aulast=Writer&rft.aufirst=Anna+Skinner+Senior&rft.au=Assignment%2C+General&rft_id=https%3A%2F%2Fwww.newsweek.com%2Finside-plan-completely-drain-lake-powell-1819013&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20130317175947/http://www.usbr.gov/uc/water/rsvrs/ops/crsp_40_gc.html">"Upper Colorado Region Water Resources Group : Lake Powell : Water Operations Data: Elevation, Content, Inflow & Release for last 40 Days"</a>. <i><a href="/wiki/United_States_Bureau_of_Reclamation" title="United States Bureau of Reclamation">United States Bureau of Reclamation</a></i>. 2013. Archived from <a rel="nofollow" class="external text" href="https://www.usbr.gov/uc/water/rsvrs/ops/crsp_40_gc.html">the original</a> on 17 March 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">15 March</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=United+States+Bureau+of+Reclamation&rft.atitle=Upper+Colorado+Region+Water+Resources+Group+%3A+Lake+Powell+%3A+Water+Operations+Data%3A+Elevation%2C+Content%2C+Inflow+%26+Release+for+last+40+Days&rft.date=2013&rft_id=http%3A%2F%2Fwww.usbr.gov%2Fuc%2Fwater%2Frsvrs%2Fops%2Fcrsp_40_gc.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20130310092001/http://www.usbr.gov/uc/water/crsp/cs/gcd.html">"Upper Colorado Region Water Operations: Current Status: Lake Powell"</a>. <i>United States Bureau of Reclamation</i>. 2013. Archived from <a rel="nofollow" class="external text" href="https://www.usbr.gov/uc/water/crsp/cs/gcd.html">the original</a> on 10 March 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">15 March</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=United+States+Bureau+of+Reclamation&rft.atitle=Upper+Colorado+Region+Water+Operations%3A+Current+Status%3A+Lake+Powell&rft.date=2013&rft_id=http%3A%2F%2Fwww.usbr.gov%2Fuc%2Fwater%2Fcrsp%2Fcs%2Fgcd.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.azgfd.gov/h_f/edits/lake_levels.shtml">"Lake Levels/River Flow"</a>. <i><a href="/wiki/Arizona_Game_and_Fish_Department" title="Arizona Game and Fish Department">Arizona Game and Fish Department</a></i>. 2013. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20100716011638/http://www.azgfd.gov/h_f/edits/lake_levels.shtml">Archived</a> from the original on 16 July 2010<span class="reference-accessdate">. Retrieved <span class="nowrap">15 March</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Arizona+Game+and+Fish+Department&rft.atitle=Lake+Levels%2FRiver+Flow&rft.date=2013&rft_id=http%3A%2F%2Fwww.azgfd.gov%2Fh_f%2Fedits%2Flake_levels.shtml&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-data-9"><span class="mw-cite-backlink">^ <a href="#cite_ref-data_9-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-data_9-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-data_9-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-data_9-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-data_9-4"><sup><i><b>e</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://lakepowell.water-data.com/index2.php?as_of=1983-07-14">"Water Database"</a>. <i>Lakepowell.water-data.com</i>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160924065650/http://lakepowell.water-data.com/index2.php?as_of=1983-07-14">Archived</a> from the original on 2016-09-24<span class="reference-accessdate">. Retrieved <span class="nowrap">2016-07-22</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Lakepowell.water-data.com&rft.atitle=Water+Database&rft_id=http%3A%2F%2Flakepowell.water-data.com%2Findex2.php%3Fas_of%3D1983-07-14&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://oilcity.news/general/2021/07/29/wyo-looks-to-store-divert-more-water-as-lake-powell-dries-up/">Wyo looks to store, divert more water as Lake Powell dries up</a></span> </li> <li id="cite_note-Reclamation-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-Reclamation_11-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.usbr.gov/uc/water/rsvrs/ops/monthly_summaries/22_04_allRes.pdf">"Monthly Reservoir Summary"</a> <span class="cs1-format">(PDF)</span>. <i>Upper Colorado Region</i>. Bureau of Reclamation, Department of the Interior<span class="reference-accessdate">. Retrieved <span class="nowrap">18 July</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Upper+Colorado+Region&rft.atitle=Monthly+Reservoir+Summary&rft_id=https%3A%2F%2Fwww.usbr.gov%2Fuc%2Fwater%2Frsvrs%2Fops%2Fmonthly_summaries%2F22_04_allRes.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFRachel_Ramirez2022" class="citation web cs1">Rachel Ramirez (21 March 2022). <a rel="nofollow" class="external text" href="https://www.cnn.com/2022/03/21/us/lake-powell-capacity-shrinking-drought-climate/index.html">"Not only is Lake Powell's water level plummeting because of drought, its total capacity is shrinking, too"</a>. <i>CNN</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2022-07-13</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=CNN&rft.atitle=Not+only+is+Lake+Powell%27s+water+level+plummeting+because+of+drought%2C+its+total+capacity+is+shrinking%2C+too&rft.date=2022-03-21&rft.au=Rachel+Ramirez&rft_id=https%3A%2F%2Fwww.cnn.com%2F2022%2F03%2F21%2Fus%2Flake-powell-capacity-shrinking-drought-climate%2Findex.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCorrespondent2014" class="citation web cs1">Correspondent, Todd Glasenapp Sun (7 May 2014). <a rel="nofollow" class="external text" href="https://azdailysun.com/news/local/deeper-lake-powell-shortcut-completed/article_a06f0d4e-d5a7-11e3-9e66-001a4bcf887a.html">"Deeper Lake Powell shortcut completed"</a>. <i>azdailysun.com</i>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20150730034318/http://azdailysun.com/news/local/deeper-lake-powell-shortcut-completed/article_a06f0d4e-d5a7-11e3-9e66-001a4bcf887a.html">Archived</a> from the original on 2015-07-30.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=azdailysun.com&rft.atitle=Deeper+Lake+Powell+shortcut+completed&rft.date=2014-05-07&rft.aulast=Correspondent&rft.aufirst=Todd+Glasenapp+Sun&rft_id=http%3A%2F%2Fazdailysun.com%2Fnews%2Flocal%2Fdeeper-lake-powell-shortcut-completed%2Farticle_a06f0d4e-d5a7-11e3-9e66-001a4bcf887a.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span> <span class="cs1-visible-error citation-comment"><code class="cs1-code">{{<a href="/wiki/Template:Cite_web" title="Template:Cite web">cite web</a>}}</code>: </span><span class="cs1-visible-error citation-comment"><code class="cs1-code">|last=</code> has generic name (<a href="/wiki/Help:CS1_errors#generic_name" title="Help:CS1 errors">help</a>)</span></span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-14">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.nationalparkstraveler.com/2014/01/castle-rock-cut-be-deepened-again-glen-canyon-national-recreation-area24563">"Castle Rock Cut To Be Deepened Again at Glen Canyon National Recreation Area – National Parks Traveler"</a>. <i>www.nationalparkstraveler.com</i>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160829072326/http://www.nationalparkstraveler.com/2014/01/castle-rock-cut-be-deepened-again-glen-canyon-national-recreation-area24563">Archived</a> from the original on 2016-08-29.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=www.nationalparkstraveler.com&rft.atitle=Castle+Rock+Cut+To+Be+Deepened+Again+at+Glen+Canyon+National+Recreation+Area+%E2%80%93+National+Parks+Traveler&rft_id=http%3A%2F%2Fwww.nationalparkstraveler.com%2F2014%2F01%2Fcastle-rock-cut-be-deepened-again-glen-canyon-national-recreation-area24563&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-15"><span class="mw-cite-backlink"><b><a href="#cite_ref-15">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPageMSTUs" class="citation web cs1">Page, Mailing Address: PO Box 1507; MST, AZ 86040 Phone:608-6200 Receptionist available at Glen Canyon Headquarters from 7 am to 4 pm; Us, Monday through Friday The phone is not monitored when the building is closed Contact. <a rel="nofollow" class="external text" href="https://www.nps.gov/glca/learn/changing-lake-levels.htm">"Changing Lake Levels - Glen Canyon National Recreation Area (U.S. National Park Service)"</a>. <i>www.nps.gov</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=www.nps.gov&rft.atitle=Changing+Lake+Levels+-+Glen+Canyon+National+Recreation+Area+%28U.S.+National+Park+Service%29&rft.aulast=Page&rft.aufirst=Mailing+Address%3A+PO+Box+1507&rft.au=MST%2C+AZ+86040+Phone%3A608-6200+Receptionist+available+at+Glen+Canyon+Headquarters+from+7+am+to+4+pm&rft.au=Us%2C+Monday+through+Friday+The+phone+is+not+monitored+when+the+building+is+closed+Contact&rft_id=https%3A%2F%2Fwww.nps.gov%2Fglca%2Flearn%2Fchanging-lake-levels.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span><span class="cs1-maint citation-comment"><code class="cs1-code">{{<a href="/wiki/Template:Cite_web" title="Template:Cite web">cite web</a>}}</code>: CS1 maint: numeric names: authors list (<a href="/wiki/Category:CS1_maint:_numeric_names:_authors_list" title="Category:CS1 maint: numeric names: authors list">link</a>)</span></span> </li> <li id="cite_note-16"><span class="mw-cite-backlink"><b><a href="#cite_ref-16">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.lakepowell.org/page_two/information/articles/Mussel/mussel.html">"Zebra Mussel Watch"</a>. <i>Friends of Lake Powell</i>. 2009. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20130508210344/http://www.lakepowell.org/page_two/information/articles/Mussel/mussel.html">Archived</a> from the original on 8 May 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">15 March</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Friends+of+Lake+Powell&rft.atitle=Zebra+Mussel+Watch&rft.date=2009&rft_id=http%3A%2F%2Fwww.lakepowell.org%2Fpage_two%2Finformation%2Farticles%2FMussel%2Fmussel.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-17">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20120715161516/http://wildlife.state.co.us/newsapp/Press.asp?PressId=4722">"Zebra Mussels detected in Lake Pueblo State Park"</a>. <i><a href="/wiki/Colorado_Parks_and_Wildlife" title="Colorado Parks and Wildlife">Colorado Parks and Wildlife</a></i>. 17 January 2008. Archived from <a rel="nofollow" class="external text" href="http://wildlife.state.co.us/newsapp/press.asp?pressid=4722">the original</a> on 15 July 2012<span class="reference-accessdate">. Retrieved <span class="nowrap">15 March</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Colorado+Parks+and+Wildlife&rft.atitle=Zebra+Mussels+detected+in+Lake+Pueblo+State+Park&rft.date=2008-01-17&rft_id=http%3A%2F%2Fwildlife.state.co.us%2Fnewsapp%2Fpress.asp%3Fpressid%3D4722&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-18">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.denverpost.com/ci_8004122">"Zebra mussels detected at Lake Pueblo State Park"</a>. <i><a href="/wiki/The_Denver_Post" title="The Denver Post">The Denver Post</a></i>. 17 January 2008. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20140503100919/http://www.denverpost.com/ci_8004122">Archived</a> from the original on 3 May 2014<span class="reference-accessdate">. Retrieved <span class="nowrap">15 March</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=The+Denver+Post&rft.atitle=Zebra+mussels+detected+at+Lake+Pueblo+State+Park&rft.date=2008-01-17&rft_id=http%3A%2F%2Fwww.denverpost.com%2Fci_8004122&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></span> </li> <li id="cite_note-19"><span class="mw-cite-backlink"><b><a href="#cite_ref-19">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://lpputah.org/what-is-the-lake-powell-pipeline/">The LPP: A Key to Our Long-Term Water Future</a></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Bibliography">Bibliography</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=15" title="Edit section: Bibliography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Martin, Russell, <i>A Story That Stands Like a Dam: Glen Canyon and the Struggle for the Soul of the West,</i> Henry Holt & Co, 1989</li> <li>McPhee, John, "Encounters with the Archdruid," Farrar, Straus, and Giroux, 1971</li> <li>Nichols, Tad, <i>Glen Canyon: Images of a Lost World,</i> Santa Fe: Museum of New Mexico Press, 2000</li> <li>Abbey, Edward, <i>Desert Solitaire,</i> Ballantine Books, 1985</li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGlick2006" class="citation magazine cs1">Glick, Daniel (April 2006). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20070807084142/http://www7.nationalgeographic.com/ngm/0604/feature3/index.html">"<i>A Dry Red Season: Uncovering the Glory of Glen Canyon,</i>"</a>. <i><a href="/wiki/National_Geographic_Magazine" class="mw-redirect" title="National Geographic Magazine">National Geographic</a></i>. Archived from <a rel="nofollow" class="external text" href="http://www7.nationalgeographic.com/ngm/0604/feature3/index.html">the original</a> on 2007-08-07<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-10-21</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=National+Geographic&rft.atitle=A+Dry+Red+Season%3A+Uncovering+the+Glory+of+Glen+Canyon%2C&rft.date=2006-04&rft.aulast=Glick&rft.aufirst=Daniel&rft_id=http%3A%2F%2Fwww7.nationalgeographic.com%2Fngm%2F0604%2Ffeature3%2Findex.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALake+Powell" class="Z3988"></span></li> <li>Farmer, Jared, <i>Glen Canyon Dammed: Inventing Lake Powell and the Canyon Country,</i> Tucson: The University of Arizona Press, 1999</li> <li>Stiles, Jim, <i>The Brief but Wonderful Return of Cathedral in the Desert,</i> Salt Lake Tribune, June 7, 2005</li></ul> <div class="mw-heading mw-heading2"><h2 id="Further_reading">Further reading</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=16" title="Edit section: Further reading"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>(1994) <a rel="nofollow" class="external text" href="https://web.archive.org/web/20221103115816/https://www.uen.org/utah_history_encyclopedia/l/LAKE_POWELL.shtml">"Lake Powell"</a> article in the <a rel="nofollow" class="external text" href="https://www.uen.org/utah_history_encyclopedia/"><i>Utah History Encyclopedia.</i></a> The article was written by Robert S. McPherson and the Encyclopedia was published by the University of Utah Press. ISBN 9780874804256. Archived from <a rel="nofollow" class="external text" href="https://www.uen.org/utah_history_encyclopedia/l/LAKE_POWELL.shtml">the original</a> on November 3, 2022 and retrieved on June 17, 2024.</li></ul> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lake_Powell&action=edit&section=17" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1237033735">@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}</style><div class="side-box side-box-right plainlinks sistersitebox"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"> <div class="side-box-flex"> <div class="side-box-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></div> <div class="side-box-text plainlist">Wikimedia Commons has media related to <span style="font-weight: bold; font-style: italic;"><a href="https://commons.wikimedia.org/wiki/Category:Lake_Powell" class="extiw" title="commons:Category:Lake Powell">Lake Powell</a></span>.</div></div> </div> <ul><li><a rel="nofollow" class="external text" href="https://earthobservatory.nasa.gov/Features/WorldOfChange/lake_powell.php">Water Level in Lake Powell</a>, slide show of ten years of images from NASA's <a href="/wiki/Landsat_5" title="Landsat 5">Landsat 5</a> satellite, showing dramatic fluctuations in water levels in Lake Powell.</li> <li><a rel="nofollow" class="external text" href="http://lakepowell.water-data.com/">Lake Powell Water Database</a> – water level, basin snowpack, and other statistics</li> <li><a rel="nofollow" class="external text" href="http://www.lakepowell.com">Lake Powell Resorts and Marinas</a></li> <li><a rel="nofollow" class="external text" href="http://www.lakepowell.org">Friends of Lake Powell</a> – organization opposed to decommissioning Glen Canyon Dam</li> <li><a rel="nofollow" class="external text" href="http://www.nps.gov/glca/">Glen Canyon National Recreation Area (National Park Service)</a></li> <li><a rel="nofollow" class="external autonumber" href="https://data.usbr.gov/time-series/search?id=509.19630628-20211011&it=509&lo=393&v=1">[1]</a></li> <li><a rel="nofollow" class="external text" href="https://www.usbr.gov/uc/water/hydrodata/reservoir_data/919/dashboard.html#pool_elevation/">Data visualization from Bureau of Reclamation</a> (interactive)</li> <li><a rel="nofollow" class="external text" href="https://data.usbr.gov/">Reclamation Information Sharing Environment (RISE)</a> – Bureau of Reclamation database, with locations and time series on water levels and flows</li> <li><a rel="nofollow" class="external text" href="https://turingmachineworks.com/lakepowell.html">Lake Powell historical water level data</a> - Lake Powell water level data for the recent 25-year period 1997–2022, in machine-readable (CSV/Excel) formats</li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist 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href="/wiki/Fontenelle_Dam" title="Fontenelle Dam">Fontenelle Dam</a></li> <li><a href="/wiki/Glen_Canyon_Dam" title="Glen Canyon Dam">Glen Canyon Dam</a></li> <li><a href="/wiki/Flaming_Gorge_Dam" title="Flaming Gorge Dam">Flaming Gorge Dam</a></li> <li><a href="/wiki/Navajo_Dam" title="Navajo Dam">Navajo Dam</a></li> <li><a href="/wiki/Crystal_Dam" title="Crystal Dam">Crystal Dam</a></li> <li><a href="/wiki/Morrow_Point_Dam" title="Morrow Point Dam">Morrow Point Dam</a></li> <li><a href="/wiki/Blue_Mesa_Dam" title="Blue Mesa Dam">Blue Mesa Dam</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Reservoir" title="Reservoir">Reservoirs</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Fontenelle_Reservoir" title="Fontenelle Reservoir">Fontenelle Reservoir</a></li> <li><a class="mw-selflink selflink">Lake Powell</a></li> <li><a href="/wiki/Flaming_Gorge_Reservoir" title="Flaming Gorge Reservoir">Flaming Gorge Reservoir</a></li> <li><a href="/wiki/Navajo_Lake" title="Navajo Lake">Navajo Lake</a></li> <li><a href="/wiki/Crystal_Reservoir" title="Crystal Reservoir">Crystal Reservoir</a></li> <li><a href="/wiki/Morrow_Point_Reservoir" title="Morrow Point Reservoir">Morrow Point Reservoir</a></li> <li><a href="/wiki/Blue_Mesa_Reservoir" title="Blue Mesa Reservoir">Blue Mesa Reservoir</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Water resources<br />projects</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Animas-La_Plata_Water_Project" title="Animas-La Plata Water Project">Animas-La Plata Water Project</a></li> <li><a href="/wiki/Bostwick_Park_Project" class="mw-redirect" title="Bostwick Park Project">Bostwick Park Project</a></li> <li><a href="/wiki/Central_Utah_Project" title="Central Utah Project">Central Utah Project</a></li> <li><a href="/wiki/Dallas_Creek_Project" class="mw-redirect" title="Dallas Creek Project">Dallas Creek Project</a></li> <li><a href="/wiki/Dolores_Project" title="Dolores Project">Dolores Project</a></li> <li><a href="/w/index.php?title=Eden_Project_(Wyoming)&action=edit&redlink=1" class="new" title="Eden Project (Wyoming) (page does not exist)">Eden Project</a></li> <li><a href="/w/index.php?title=Emery_County_Project&action=edit&redlink=1" class="new" title="Emery County Project (page does not exist)">Emery County Project</a></li> <li><a href="/wiki/Florida_Project_(Colorado)" class="mw-redirect" title="Florida Project (Colorado)">Florida Project</a></li> <li><a href="/w/index.php?title=Hammond_Project&action=edit&redlink=1" class="new" title="Hammond Project (page does not exist)">Hammond Project</a></li> <li><a href="/w/index.php?title=La_Barge_Project&action=edit&redlink=1" class="new" title="La Barge Project (page does not exist)">La Barge Project</a></li> <li><a href="/w/index.php?title=Lyman_Project&action=edit&redlink=1" class="new" title="Lyman Project (page does not exist)">Lyman Project</a></li> <li><a href="/wiki/Navajo_Indian_Irrigation_Project" title="Navajo Indian Irrigation Project">Navajo Indian Irrigation Project</a></li> <li><a href="/wiki/Paonia_Project" class="mw-redirect" title="Paonia Project">Paonia Project</a></li> <li><a href="/w/index.php?title=Pine_River_Project&action=edit&redlink=1" class="new" title="Pine River Project (page does not exist)">Pine River Project</a></li> <li><a href="/wiki/San_Juan%E2%80%93Chama_Project" title="San Juan–Chama Project">San Juan–Chama Project</a></li> <li><a href="/wiki/Seedskadee_Project" title="Seedskadee Project">Seedskadee Project</a></li> <li><a href="/wiki/Silt_Project" class="mw-redirect" title="Silt Project">Silt Project</a></li> <li><a href="/w/index.php?title=Smith_Fork_Project&action=edit&redlink=1" class="new" title="Smith Fork Project (page does not exist)">Smith Fork Project</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/River" title="River">Rivers</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Colorado_River" title="Colorado River">Colorado River</a></li> <li><a href="/wiki/Green_River_(Colorado_River_tributary)" title="Green River (Colorado River tributary)">Green River</a></li> <li><a href="/wiki/Gunnison_River" title="Gunnison River">Gunnison River</a></li> <li><a href="/wiki/San_Juan_River_(Colorado_River_tributary)" title="San Juan River (Colorado River tributary)">San Juan River</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Colorado_River_system" style="padding:3px"><table class="nowraplinks mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Colorado_River_system" title="Template:Colorado River system"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Colorado_River_system" title="Template talk:Colorado River system"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Colorado_River_system" title="Special:EditPage/Template:Colorado River system"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Colorado_River_system" style="font-size:114%;margin:0 4em"><a href="/wiki/Colorado_River" title="Colorado River">Colorado River</a> system</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Jurisdictions</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>United States <ul><li><span style="font-size:85%;"><a href="/wiki/Arizona" title="Arizona">Arizona</a></span></li> <li><span style="font-size:85%;"><a href="/wiki/California" title="California">California</a></span></li> <li><span style="font-size:85%;"><a href="/wiki/Colorado" title="Colorado">Colorado</a></span></li> <li><span style="font-size:85%;"><a href="/wiki/Nevada" title="Nevada">Nevada</a></span></li> <li><span style="font-size:85%;"><a href="/wiki/New_Mexico" title="New Mexico">New Mexico</a></span></li> <li><span style="font-size:85%;"><a href="/wiki/Utah" title="Utah">Utah</a></span></li> <li><span style="font-size:85%;"><a href="/wiki/Wyoming" title="Wyoming">Wyoming</a></span></li></ul></li> <li>Mexico <ul><li><span style="font-size:85%;"><a href="/wiki/Baja_California" title="Baja California">Baja California</a></span></li> <li><span style="font-size:85%;"><a href="/wiki/Sonora" title="Sonora">Sonora</a></span></li></ul></li></ul> </div></td><td class="noviewer navbox-image" rowspan="7" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"><a href="/wiki/File:Topockgorge.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Topockgorge.jpg/100px-Topockgorge.jpg" decoding="async" width="100" height="75" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Topockgorge.jpg/150px-Topockgorge.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Topockgorge.jpg/200px-Topockgorge.jpg 2x" data-file-width="1024" data-file-height="768" /></a></span><br /><span typeof="mw:File"><a href="/wiki/File:Glen_Canyon_Dam_MC.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Glen_Canyon_Dam_MC.jpg/100px-Glen_Canyon_Dam_MC.jpg" decoding="async" width="100" height="42" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Glen_Canyon_Dam_MC.jpg/150px-Glen_Canyon_Dam_MC.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Glen_Canyon_Dam_MC.jpg/200px-Glen_Canyon_Dam_MC.jpg 2x" data-file-width="7000" data-file-height="2917" /></a></span><br /><span typeof="mw:File"><a href="/wiki/File:Colorado_River05.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Colorado_River05.jpg/100px-Colorado_River05.jpg" decoding="async" width="100" height="66" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Colorado_River05.jpg/150px-Colorado_River05.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Colorado_River05.jpg/200px-Colorado_River05.jpg 2x" data-file-width="2482" data-file-height="1648" /></a></span><br /><span typeof="mw:File"><a href="/wiki/File:Colorado_River_Avi.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ed/Colorado_River_Avi.JPG/100px-Colorado_River_Avi.JPG" decoding="async" width="100" height="75" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ed/Colorado_River_Avi.JPG/150px-Colorado_River_Avi.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ed/Colorado_River_Avi.JPG/200px-Colorado_River_Avi.JPG 2x" data-file-width="2048" data-file-height="1536" /></a></span><br /><span typeof="mw:File"><a href="/wiki/File:HooverDamFrontWater.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9a/HooverDamFrontWater.jpg/100px-HooverDamFrontWater.jpg" decoding="async" width="100" height="128" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9a/HooverDamFrontWater.jpg/150px-HooverDamFrontWater.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9a/HooverDamFrontWater.jpg/200px-HooverDamFrontWater.jpg 2x" data-file-width="593" data-file-height="758" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Canyons</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Byers_Canyon" title="Byers Canyon">Byers Canyon</a></li> <li><a href="/wiki/Gore_Canyon" title="Gore Canyon">Gore Canyon</a></li> <li>Red Gorge</li> <li><a href="/wiki/Glenwood_Canyon" title="Glenwood Canyon">Glenwood Canyon</a></li> <li><a href="/wiki/De_Beque_Canyon" title="De Beque Canyon">De Beque Canyon</a></li> <li>Horsethief Canyon</li> <li><a href="/wiki/Ruby_Canyon" title="Ruby Canyon">Ruby Canyon</a></li> <li><a href="/wiki/Westwater_Canyon" title="Westwater Canyon">Westwater Canyon</a></li> <li><a href="/wiki/Cataract_Canyon" title="Cataract Canyon">Cataract Canyon</a></li> <li>Narrow Canyon</li> <li><a href="/wiki/Glen_Canyon" title="Glen Canyon">Glen Canyon</a></li> <li><a href="/wiki/Grand_Canyon" title="Grand Canyon">Grand Canyon</a> <ul><li><span style="font-size:85%;"><a href="/wiki/Marble_Canyon" title="Marble Canyon">Marble Canyon</a></span></li> <li><span style="font-size:85%;">Granite Gorge</span></li> <li><span style="font-size:85%;">Middle Granite Gorge</span></li> <li><span style="font-size:85%;">Lower Granite Gorge</span></li></ul></li> <li>Grand Wash Canyon</li> <li>Iceberg Canyon</li> <li>Virgin Canyon</li> <li><a href="/wiki/Boulder_Canyon_(Colorado_River)" title="Boulder Canyon (Colorado River)">Boulder Canyon</a></li> <li><a href="/wiki/Black_Canyon_of_the_Colorado" title="Black Canyon of the Colorado">Black Canyon</a></li> <li><a href="/wiki/Pyramid_Canyon" title="Pyramid Canyon">Pyramid Canyon</a></li> <li>Mohave Canyon</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Natural features</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Course_of_the_Colorado_River" title="Course of the Colorado River">River course</a></li> <li><a href="/wiki/Rocky_Mountains" title="Rocky Mountains">Rocky Mountains</a></li> <li><a href="/wiki/Colorado_River_Basin" class="mw-redirect" title="Colorado River Basin">Colorado River Basin</a></li> <li><a href="/wiki/Colorado_Plateau" title="Colorado Plateau">Colorado Plateau</a></li> <li><a href="/wiki/Grand_Lake_(Colorado)" title="Grand Lake (Colorado)">Grand Lake</a></li> <li><a href="/wiki/Horseshoe_Bend_(Arizona)" title="Horseshoe Bend (Arizona)">Horseshoe Bend</a></li> <li><a href="/wiki/Sonoran_Desert" title="Sonoran Desert">Sonoran Desert</a></li> <li><a href="/wiki/Mojave_Desert" title="Mojave Desert">Mojave Desert</a></li> <li><a href="/wiki/Lower_Colorado_River_Valley" title="Lower Colorado River Valley">Lower Colorado River Valley</a></li> <li><a href="/wiki/Mohave_Valley" title="Mohave Valley">Mohave Valley</a></li> <li><a href="/wiki/Parker_Valley" title="Parker Valley">Parker Valley</a></li> <li><a href="/wiki/Palo_Verde_Valley" title="Palo Verde Valley">Palo Verde Valley</a></li> <li><a href="/wiki/Colorado_Desert" title="Colorado Desert">Colorado Desert</a></li> <li><a href="/wiki/Alamo_River" title="Alamo River">Alamo River</a></li> <li><a href="/wiki/New_River_(Mexico%E2%80%93United_States)" title="New River (Mexico–United States)">New River</a></li> <li><a href="/wiki/Salton_Sea" title="Salton Sea">Salton Sea</a></li> <li><a href="/wiki/Imperial_Valley" title="Imperial Valley">Imperial Valley</a></li> <li><a href="/wiki/Colorado_River_Delta" title="Colorado River Delta">Delta</a></li> <li><a href="/wiki/Montague_Island_(Baja_California)" title="Montague Island (Baja California)">Montague Island</a></li> <li><a href="/wiki/Gulf_of_California" title="Gulf of California">Gulf of California/Sea of Cortez</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_tributaries_of_the_Colorado_River" title="List of tributaries of the Colorado River">Tributaries</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Blue_River_(Colorado)" title="Blue River (Colorado)">Blue River</a></li> <li><a href="/wiki/Dirty_Devil_River" title="Dirty Devil River">Dirty Devil River</a></li> <li><a href="/wiki/Dolores_River" title="Dolores River">Dolores River</a></li> <li><a href="/wiki/Escalante_River" title="Escalante River">Escalante River</a></li> <li><a href="/wiki/Eagle_River_(Colorado)" title="Eagle River (Colorado)">Eagle River</a></li> <li><a href="/wiki/Fraser_River_(Colorado)" title="Fraser River (Colorado)">Fraser River</a></li> <li><a href="/wiki/Gila_River" title="Gila River">Gila River</a></li> <li><a href="/wiki/Green_River_(Colorado_River_tributary)" title="Green River (Colorado River tributary)">Green River</a></li> <li><a href="/wiki/Gunnison_River" title="Gunnison River">Gunnison River</a></li> <li><a href="/wiki/Kanab_Creek" title="Kanab Creek">Kanab Creek</a></li> <li><a href="/wiki/Little_Colorado_River" title="Little Colorado River">Little Colorado River</a></li> <li><a href="/wiki/Paria_River" title="Paria River">Paria River</a></li> <li><a href="/wiki/Roaring_Fork_River" title="Roaring Fork River">Roaring Fork River</a></li> <li><a href="/wiki/San_Juan_River_(Colorado_River_tributary)" title="San Juan River (Colorado River tributary)">San Juan River</a></li> <li><a href="/wiki/Thunder_River_(Tapeats_Creek_tributary)" title="Thunder River (Tapeats Creek tributary)">Thunder River</a>/<a href="/wiki/Tapeats_Creek" title="Tapeats Creek">Tapeats Creek</a></li> <li><a href="/wiki/Virgin_River" title="Virgin River">Virgin River</a></li> <li><a href="/wiki/Las_Vegas_Wash" title="Las Vegas Wash">Las Vegas Wash</a></li> <li><a href="/wiki/Williams_Fork_(Colorado_River_tributary)" title="Williams Fork (Colorado River tributary)">Williams Fork</a></li> <li><a href="/wiki/Hardy_River" title="Hardy River">Río Hardy</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Engineering</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_dams_in_the_Colorado_River_system" title="List of dams in the Colorado River system">Mainstem dams</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Shadow_Mountain_Dam" title="Shadow Mountain Dam">Shadow Mountain</a></li> <li><a href="/wiki/Granby_Dam" title="Granby Dam">Granby</a></li> <li><a href="/w/index.php?title=Windy_Gap_Dam&action=edit&redlink=1" class="new" title="Windy Gap Dam (page does not exist)">Windy Gap</a></li> <li><a href="/wiki/Grand_Valley_Diversion_Dam" title="Grand Valley Diversion Dam">Grand Valley</a></li> <li><a href="/w/index.php?title=Price-Stubb_Dam&action=edit&redlink=1" class="new" title="Price-Stubb Dam (page does not exist)">Price-Stubb</a></li> <li><a href="/wiki/Glen_Canyon_Dam" title="Glen Canyon Dam">Glen Canyon</a></li> <li><a href="/wiki/Hoover_Dam" title="Hoover Dam">Hoover</a></li> <li><a href="/wiki/Davis_Dam" title="Davis Dam">Davis</a></li> <li><a href="/wiki/Parker_Dam" title="Parker Dam">Parker</a></li> <li><a href="/w/index.php?title=Headgate_Rock_Dam&action=edit&redlink=1" class="new" title="Headgate Rock Dam (page does not exist)">Headgate Rock</a></li> <li><a href="/wiki/Palo_Verde_Dam" title="Palo Verde Dam">Palo Verde</a></li> <li><a href="/wiki/Imperial_Dam" title="Imperial Dam">Imperial</a></li> <li><a href="/wiki/Laguna_Diversion_Dam" title="Laguna Diversion Dam">Laguna</a></li> <li><a href="/wiki/Morelos_Dam" title="Morelos Dam">Morelos</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Major reservoirs</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Fontenelle_Reservoir" title="Fontenelle Reservoir">Fontenelle Reservoir</a></li> <li><a href="/wiki/Flaming_Gorge_Reservoir" title="Flaming Gorge Reservoir">Flaming Gorge Reservoir</a></li> <li><a href="/wiki/Blue_Mesa_Reservoir" title="Blue Mesa Reservoir">Blue Mesa Reservoir</a></li> <li><a href="/wiki/Navajo_Lake" title="Navajo Lake">Navajo Lake</a></li> <li><a class="mw-selflink selflink">Lake Powell</a></li> <li><a href="/wiki/Lake_Mead" title="Lake Mead">Lake Mead</a></li> <li><a href="/wiki/Lake_Mohave" title="Lake Mohave">Lake Mohave</a></li> <li><a href="/wiki/Lake_Havasu" title="Lake Havasu">Lake Havasu</a></li> <li><a href="/wiki/Imperial_Reservoir" title="Imperial Reservoir">Imperial Reservoir</a></li> <li><a href="/wiki/Theodore_Roosevelt_Lake" title="Theodore Roosevelt Lake">Theodore Roosevelt Lake</a></li> <li><a href="/wiki/San_Carlos_Lake" title="San Carlos Lake">San Carlos Lake</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Aqueducts and<br />canals</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Grand_Ditch" title="Grand Ditch">Grand Ditch</a></li> <li><a href="/wiki/Colorado_River_Aqueduct" title="Colorado River Aqueduct">Colorado River Aqueduct</a></li> <li><a href="/wiki/San_Diego_Aqueduct" title="San Diego Aqueduct">San Diego Aqueduct</a></li> <li><a href="/wiki/Central_Arizona_Project" title="Central Arizona Project">Central Arizona Project</a></li> <li><a href="/wiki/All-American_Canal" title="All-American Canal">All-American Canal</a></li> <li><a href="/wiki/Alamo_Canal" title="Alamo Canal">Alamo Canal</a></li> <li><a href="/wiki/Coachella_Canal" title="Coachella Canal">Coachella Canal</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Water projects</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Boulder_Canyon_Project" class="mw-redirect" title="Boulder Canyon Project">Boulder Canyon Project</a></li> <li><a href="/wiki/Colorado%E2%80%93Big_Thompson_Project" title="Colorado–Big Thompson Project">Colorado–Big Thompson Project</a></li> <li><a href="/wiki/Colorado_River_Storage_Project" title="Colorado River Storage Project">Colorado River Storage Project</a></li> <li><a href="/wiki/Grand_Valley_AVA" title="Grand Valley AVA">Grand Valley AVA</a></li> <li><a href="/wiki/Yuma_Project" title="Yuma Project">Yuma Project</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Designated areas</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Arches_National_Park" title="Arches National Park">Arches National Park</a></li> <li><a href="/wiki/Canyonlands_National_Park" title="Canyonlands National Park">Canyonlands National Park</a></li> <li><a href="/wiki/Colorado_National_Monument" title="Colorado National Monument">Colorado National Monument</a></li> <li><a href="/wiki/Dead_Horse_Point_State_Park" title="Dead Horse Point State Park">Dead Horse Point State Park</a></li> <li><a href="/wiki/Glen_Canyon_National_Recreation_Area" title="Glen Canyon National Recreation Area">Glen Canyon National Recreation Area</a></li> <li><a href="/wiki/Grand_Canyon_National_Park" title="Grand Canyon National Park">Grand Canyon National Park</a></li> <li><a href="/wiki/Lake_Mead_National_Recreation_Area" title="Lake Mead National Recreation Area">Lake Mead National Recreation Area</a></li> <li><a href="/wiki/Rocky_Mountain_National_Park" title="Rocky Mountain National Park">Rocky Mountain National Park</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related topics</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Arizona_v._California" title="Arizona v. California">Arizona v. California</a></i></li> <li><a href="/wiki/Colorado_River_Board_of_California" title="Colorado River Board of California">Colorado River Board of California</a></li> <li><a href="/wiki/Colorado_River_Compact" title="Colorado River Compact">Colorado River Compact</a></li> <li><a href="/wiki/Floyd_Dominy" title="Floyd Dominy">Floyd Dominy</a></li> <li><a href="/wiki/Lee%27s_Ferry" class="mw-redirect" title="Lee's Ferry">Lee's Ferry</a></li> <li><a href="/wiki/International_Boundary_and_Water_Commission" title="International Boundary and Water Commission">International Boundary and Water Commission</a></li> <li><a href="/wiki/Metropolitan_Water_District_of_Southern_California" title="Metropolitan Water District of Southern California">Metropolitan Water District of Southern California</a></li> <li><a href="/wiki/List_of_Colorado_River_rapids_and_features" class="mw-redirect" title="List of Colorado River rapids and features">Rapids and features</a></li> <li><a href="/wiki/United_States_Bureau_of_Reclamation" title="United States Bureau of Reclamation">U.S. Bureau of Reclamation</a></li> <li><a href="/wiki/William_Mulholland" title="William Mulholland">William Mulholland</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Glen_Canyon_National_Recreation_Area" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Glen_Canyon_National_Recreation_Area" title="Template:Glen Canyon National Recreation Area"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Glen_Canyon_National_Recreation_Area" title="Template talk:Glen Canyon National Recreation Area"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Glen_Canyon_National_Recreation_Area" title="Special:EditPage/Template:Glen Canyon National Recreation Area"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Glen_Canyon_National_Recreation_Area" style="font-size:114%;margin:0 4em"><a href="/wiki/Glen_Canyon_National_Recreation_Area" title="Glen Canyon National Recreation Area">Glen Canyon National Recreation Area</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Bodies of water</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Coyote_Gulch" title="Coyote Gulch">Coyote Gulch</a></li> <li><a href="/wiki/Horseshoe_Bend_(Arizona)" title="Horseshoe Bend (Arizona)">Horseshoe Bend</a></li> <li><a class="mw-selflink selflink">Lake Powell</a></li> <li><a href="/wiki/Padre_Bay" title="Padre Bay">Padre Bay</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Geology</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cataract_Canyon" title="Cataract Canyon">Cataract Canyon</a></li> <li><a href="/wiki/Glen_Canyon" title="Glen Canyon">Glen Canyon</a></li> <li><a href="/wiki/Gregory_Natural_Bridge" title="Gregory Natural Bridge">Gregory Natural Bridge</a></li> <li><a href="/wiki/Music_Temple" title="Music Temple">Music Temple</a></li> <li><a href="/wiki/Rainbow_Bridge_National_Monument" title="Rainbow Bridge National Monument">Rainbow Bridge National Monument</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Facilities</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bullfrog_Marina" class="mw-redirect" title="Bullfrog Marina">Bullfrog Marina</a></li> <li><a href="/wiki/Glen_Canyon_Dam" title="Glen Canyon Dam">Glen Canyon Dam</a></li> <li><a href="/wiki/Hite_Crossing_Bridge" title="Hite Crossing Bridge">Hite Crossing Bridge</a></li> <li><a href="/wiki/Lee%27s_Ferry_and_Lonely_Dell_Ranch" title="Lee's Ferry and Lonely Dell Ranch">Lee's Ferry and Lonely Dell Ranch</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Risks_to_the_Glen_Canyon_Dam" title="Risks to the Glen Canyon Dam">Risks to the Glen Canyon Dam</a></li> <li><a href="/wiki/Wahweap,_Lake_Powell" class="mw-redirect" title="Wahweap, Lake Powell">Wahweap, Lake Powell</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox authority-control" aria-labelledby="Authority_control_databases_frameless&#124;text-top&#124;10px&#124;alt=Edit_this_at_Wikidata&#124;link=https&#58;//www.wikidata.org/wiki/Q667507#identifiers&#124;class=noprint&#124;Edit_this_at_Wikidata" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Authority_control_databases_frameless&#124;text-top&#124;10px&#124;alt=Edit_this_at_Wikidata&#124;link=https&#58;//www.wikidata.org/wiki/Q667507#identifiers&#124;class=noprint&#124;Edit_this_at_Wikidata" style="font-size:114%;margin:0 4em"><a href="/wiki/Help:Authority_control" title="Help:Authority control">Authority control databases</a> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q667507#identifiers" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, 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States</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://kopkatalogs.lv/F?func=direct&local_base=lnc10&doc_number=000340055&P_CON_LNG=ENG">Latvia</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="http://olduli.nli.org.il/F/?func=find-b&local_base=NLX10&find_code=UID&request=987007531665205171">Israel</a></span></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><ul><li><span class="uid"><a rel="nofollow" class="external text" href="https://catalog.archives.gov/id/10043600">NARA</a></span></li></ul></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" 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