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id="mw-indicator-coordinates" class="mw-indicator"><div class="mw-parser-output"><span id="coordinates"><a href="/wiki/Geographic_coordinate_system" 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=Echo_Mountain&params=34.2111155_N_118.1211817_W_type:mountain_region:US-CA_scale:100000_source:GNIS"><span class="geo-default"><span class="geo-dms" title="Maps, aerial photos, and other data for this location"><span class="latitude">34°12′40″N</span> <span class="longitude">118°07′16″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">34.2111155°N 118.1211817°W</span><span style="display:none"> / <span class="geo">34.2111155; -118.1211817</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"><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 other uses, see <a href="/wiki/Echo_Mountain_(disambiguation)" class="mw-disambig" title="Echo Mountain (disambiguation)">Echo Mountain (disambiguation)</a>.</div> <div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Mountain promontory of the San Gabriel Mountains in California, USA</div> <p class="mw-empty-elt"> </p> <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" style="width:24.5em; line-height:1.5em;"><tbody><tr><th colspan="2" class="infobox-above fn org" style="background-color: #E7DCC3;">Echo Mountain</th></tr><tr><td colspan="2" class="infobox-image" style="padding: 0.3em 0.2em 0.2em 0.2em;"><span typeof="mw:File"><a href="/wiki/File:Echo_Mountain.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/13/Echo_Mountain.jpg/272px-Echo_Mountain.jpg" decoding="async" width="272" height="159" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/1/13/Echo_Mountain.jpg 1.5x" data-file-width="400" data-file-height="234" /></a></span><div class="infobox-caption" style="padding: 0.2em 0em;">Echo Mountain as seen from higher point in Las Flores Canyon.</div></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #E7DCC3;">Highest point</th></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Summit" title="Summit">Elevation</a></th><td class="infobox-data">3,210 ft (978 m)<small><a href="/wiki/North_American_Vertical_Datum_of_1988" title="North American Vertical Datum of 1988"> NAVD 88</a></small><sup id="cite_ref-pb_1-0" class="reference"><a href="#cite_note-pb-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Topographic_prominence" title="Topographic prominence">Prominence</a></th><td class="infobox-data">0–7 ft (0–2 m)<sup id="cite_ref-pb_1-1" class="reference"><a href="#cite_note-pb-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Geographic_coordinate_system" title="Geographic coordinate system">Coordinates</a></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=Echo_Mountain&params=34.2111155_N_118.1211817_W_type:mountain_region:US-CA_scale:100000_source:GNIS"><span class="geo-default"><span class="geo-dms" title="Maps, aerial photos, and other data for this location"><span class="latitude">34°12′40″N</span> <span class="longitude">118°07′16″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">34.2111155°N 118.1211817°W</span><span style="display:none"> / <span class="geo">34.2111155; -118.1211817</span></span></span></a></span></span><sup id="cite_ref-gnis_2-0" class="reference"><a href="#cite_note-gnis-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #E7DCC3;">Geography</th></tr><tr><td colspan="2" class="infobox-full-data"><div style="padding:0.2em 0.2em 0.5em 0.2em;"><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:240px;float:none;clear:both;margin-left:auto;margin-right:auto"><div style="width:240px;padding:0"><div style="position:relative;width:240px"><span class="notpageimage" typeof="mw:File"><a href="/wiki/File:Relief_map_of_California.png" class="mw-file-description" title="Echo Mountain is located in California"><img alt="Echo Mountain is located in California" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Relief_map_of_California.png/240px-Relief_map_of_California.png" decoding="async" width="240" height="275" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Relief_map_of_California.png/360px-Relief_map_of_California.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Relief_map_of_California.png/480px-Relief_map_of_California.png 2x" data-file-width="681" data-file-height="780" /></a></span><div class="od notheme" style="top:80.696%;left:60.915%;font-size:91%"><div class="id" style="left:-8px;top:-8px"><span class="notpageimage" typeof="mw:File"><span title="Echo Mountain"><img alt="Echo Mountain" src="//upload.wikimedia.org/wikipedia/en/thumb/3/39/Red_triangle_with_thick_white_border.svg/16px-Red_triangle_with_thick_white_border.svg.png" decoding="async" width="16" height="14" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/3/39/Red_triangle_with_thick_white_border.svg/24px-Red_triangle_with_thick_white_border.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/3/39/Red_triangle_with_thick_white_border.svg/32px-Red_triangle_with_thick_white_border.svg.png 2x" data-file-width="270" data-file-height="240" /></span></span></div><div class="pr" style="width:6em;left:9px"><div>Echo Mountain</div></div></div></div><div style="padding-top:0.2em">Location in California</div><span class="switcher-label" style="display:none">Show map of California</span></div></div></div><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238443738"><div class="center"><div class="locmap" style="width:240px;float:none;clear:both;margin-left:auto;margin-right:auto"><div style="width:240px;padding:0"><div style="position:relative;width:240px"><span class="notpageimage" typeof="mw:File"><a href="/wiki/File:Usa_edcp_relief_location_map.png" class="mw-file-description" title="Echo Mountain is located in the United States"><img alt="Echo Mountain is located in the United States" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Usa_edcp_relief_location_map.png/240px-Usa_edcp_relief_location_map.png" decoding="async" width="240" height="149" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Usa_edcp_relief_location_map.png/360px-Usa_edcp_relief_location_map.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Usa_edcp_relief_location_map.png/480px-Usa_edcp_relief_location_map.png 2x" data-file-width="1181" data-file-height="731" /></a></span><div class="od notheme" style="top:57.619%;left:10.854%;font-size:91%"><div class="id" style="left:-8px;top:-8px"><span class="notpageimage" typeof="mw:File"><span title="Echo Mountain"><img alt="Echo Mountain" src="//upload.wikimedia.org/wikipedia/en/thumb/3/39/Red_triangle_with_thick_white_border.svg/16px-Red_triangle_with_thick_white_border.svg.png" decoding="async" width="16" height="14" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/3/39/Red_triangle_with_thick_white_border.svg/24px-Red_triangle_with_thick_white_border.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/3/39/Red_triangle_with_thick_white_border.svg/32px-Red_triangle_with_thick_white_border.svg.png 2x" data-file-width="270" data-file-height="240" /></span></span></div><div class="pr" style="width:6em;left:9px"><div>Echo Mountain</div></div></div></div><div style="padding-top:0.2em">Echo Mountain (the United States)</div><span class="switcher-label" style="display:none">Show map of the United States</span></div></div></div></div> </div></td></tr><tr><th scope="row" class="infobox-label">Location</th><td class="infobox-data label"><a href="/wiki/Los_Angeles_County,_California" title="Los Angeles County, California">Los Angeles County</a>, <a href="/wiki/California" title="California">California</a>, <a href="/wiki/United_States" title="United States">U.S.</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Mountain_range" title="Mountain range"><span class="nowrap">Parent range</span></a></th><td class="infobox-data category"><a href="/wiki/San_Gabriel_Mountains" title="San Gabriel Mountains">San Gabriel Mountains</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Topographic_map" title="Topographic map">Topo map</a></th><td class="infobox-data"><a href="/wiki/United_States_Geological_Survey" title="United States Geological Survey">USGS</a> Mount Wilson</td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #E7DCC3;">Climbing</th></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Normal_route" title="Normal route"><span class="nowrap">Easiest route</span></a></th><td class="infobox-data"><a href="/wiki/Hiking" title="Hiking">Trail hike</a><sup id="cite_ref-sp_3-0" class="reference"><a href="#cite_note-sp-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></td></tr></tbody></table> <p><b>Echo Mountain</b> is a mountain promontory of the <a href="/wiki/San_Gabriel_Mountains" title="San Gabriel Mountains">San Gabriel Mountains</a>, in the <a href="/wiki/Angeles_National_Forest" title="Angeles National Forest">Angeles National Forest</a> above <a href="/wiki/Altadena,_California" title="Altadena, California">Altadena</a>, in <a href="/wiki/Los_Angeles_County,_California" title="Los Angeles County, California">Los Angeles County, California</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Geography">Geography</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Echo_Mountain&action=edit&section=1" title="Edit section: Geography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Echo Mountain was shaped from an <a href="/wiki/Alluvial_fan" title="Alluvial fan">alluvial fan</a> between Rubio and Las Flores canyons. It is geographically defined by Castle Canyon to its <a href="/wiki/Windward_and_leeward" title="Windward and leeward">leeward</a> side, Rubio Canyon at its foot, and Las Flores Canyon on its windward side. Echo has a mean elevation of 3,207 feet (977 m). It is most visible as a short mountain extension whose ridge protrudes below the peak of Inspiration Point.<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. (July 2009)">citation needed</span></a></i>]</sup> </p><p>Echo Mountain's name is derived from the number of repetitions one's voice<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> could emit into Castle Canyon. Boy Scout projects were made to find the "sweet spot" where the largest number of repetitions could be heard. During the days of the <a href="/wiki/Mount_Lowe_Railway" title="Mount Lowe Railway">Mount Lowe Railway</a> "echophones" were set up to assist in voice projections near the best sweet spots.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <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=Echo_Mountain&action=edit&section=2" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>On January 6, 1993, Echo Mountain, also referred to as Mount Echo, was delineated as part of the Mount Lowe Railway monument area listed by the <a href="/wiki/U.S._Forest_Service" class="mw-redirect" title="U.S. Forest Service">U.S. Forest Service</a> on the <a href="/wiki/National_Register_of_Historic_Places" title="National Register of Historic Places">National Register of Historic Places</a>. On top of the mountain are the ruins of "White City", a resort along the scenic <a href="/wiki/Mount_Lowe_Railway" title="Mount Lowe Railway">Mount Lowe Railway</a>, which could easily be seen from the valley below. From its point and down an incline to its foot in Rubio Canyon was the Great Incline <a href="/wiki/Funicular" title="Funicular">funicular</a> of the Mount Lowe Railway, whose white cars could be seen ascending and descending Echo.<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> </p> <div class="mw-heading mw-heading2"><h2 id="Trail_access">Trail access</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Echo_Mountain&action=edit&section=3" title="Edit section: Trail access"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Echo Mountain can be reached by the <a href="/wiki/Sam_Merrill_Trail" title="Sam Merrill Trail">Sam Merrill Trail</a> located at the top of <a href="/wiki/Lake_Avenue_(Pasadena)" title="Lake Avenue (Pasadena)">Lake Avenue</a>, or via the fire road which extends from Millard Canyon to a point along the old right of way, which will lead to the backside of the promontory.<sup id="cite_ref-sp_3-1" class="reference"><a href="#cite_note-sp-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Gallery">Gallery</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Echo_Mountain&action=edit&section=4" title="Edit section: Gallery"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Echo_phone.jpg" class="mw-file-description" title="Replica of an "echophone" mounted over the edge of Castle Canyon for visitors' use. The few echophones that still exist are part of personal or museum collections."><img alt="Replica of an "echophone" mounted over the edge of Castle Canyon for visitors' use. The few echophones that still exist are part of personal or museum collections." src="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Echo_phone.jpg/120px-Echo_phone.jpg" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Echo_phone.jpg/180px-Echo_phone.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/15/Echo_phone.jpg/240px-Echo_phone.jpg 2x" data-file-width="2048" data-file-height="1536" /></a></span></div> <div class="gallerytext">Replica of an "echophone" mounted over the edge of Castle Canyon for visitors' use. The few echophones that still exist are part of personal or museum collections.</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:White_City.jpg" class="mw-file-description" title="The Echo Mountain Promontory (ca. 1896) after a snowfall, and the White City resort of the Mount Lowe Railway as seen from a higher spot on the ridge and overlooking Altadena, CA. Buildings viewed from left to right: The Echo Chalet, Echo Mountain House, Incline Powerhouse, Dormitories, and Car Barn. Behind the car barn, note an inflatable reservoir for the storage of hydrogen gas produced in Pasadena and piped some 8.5 miles (13.7 km) to Echo. Echo Mountain is also known for its incredible echoes."><img alt="The Echo Mountain Promontory (ca. 1896) after a snowfall, and the White City resort of the Mount Lowe Railway as seen from a higher spot on the ridge and overlooking Altadena, CA. Buildings viewed from left to right: The Echo Chalet, Echo Mountain House, Incline Powerhouse, Dormitories, and Car Barn. Behind the car barn, note an inflatable reservoir for the storage of hydrogen gas produced in Pasadena and piped some 8.5 miles (13.7 km) to Echo. Echo Mountain is also known for its incredible echoes." src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ac/White_City.jpg/120px-White_City.jpg" decoding="async" width="120" height="68" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ac/White_City.jpg/180px-White_City.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ac/White_City.jpg/240px-White_City.jpg 2x" data-file-width="600" data-file-height="341" /></a></span></div> <div class="gallerytext">The Echo Mountain Promontory (ca. 1896) after a snowfall, and the White City resort of the Mount Lowe Railway as seen from a higher spot on the ridge and overlooking Altadena, CA. Buildings viewed from left to right: The Echo Chalet, Echo Mountain House, Incline Powerhouse, Dormitories, and Car Barn. Behind the car barn, note an inflatable reservoir for the storage of hydrogen gas produced in Pasadena and piped some 8.5 miles (13.7 km) to Echo. Echo Mountain is also known for its incredible echoes.</div> </li> </ul> <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=Echo_Mountain&action=edit&section=5" 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"><ol class="references"> <li id="cite_note-pb-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-pb_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-pb_1-1"><sup><i><b>b</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="http://www.peakbagger.com/peak.aspx?pid=13473">"Echo Mountain, California"</a>. <i>Peakbagger.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">August 1,</span> 2009</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Peakbagger.com&rft.atitle=Echo+Mountain%2C+California&rft_id=http%3A%2F%2Fwww.peakbagger.com%2Fpeak.aspx%3Fpid%3D13473&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEcho+Mountain" class="Z3988"></span></span> </li> <li id="cite_note-gnis-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-gnis_2-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation encyclopaedia cs1"><a rel="nofollow" class="external text" href="https://edits.nationalmap.gov/apps/gaz-domestic/public/search/names/241821">"Echo Mountain"</a>. <i><a href="/wiki/Geographic_Names_Information_System" title="Geographic Names Information System">Geographic Names Information System</a></i>. <a href="/wiki/United_States_Geological_Survey" title="United States Geological Survey">United States Geological Survey</a>, <a href="/wiki/United_States_Department_of_the_Interior" title="United States Department of the Interior">United States Department of the Interior</a><span class="reference-accessdate">. Retrieved <span class="nowrap">August 1,</span> 2009</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Echo+Mountain&rft.btitle=Geographic+Names+Information+System&rft.pub=United+States+Geological+Survey%2C+United+States+Department+of+the+Interior&rft_id=https%3A%2F%2Fedits.nationalmap.gov%2Fapps%2Fgaz-domestic%2Fpublic%2Fsearch%2Fnames%2F241821&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEcho+Mountain" class="Z3988"></span></span> </li> <li id="cite_note-sp-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-sp_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-sp_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="http://www.summitpost.org/page/385220">"Lower Sam Merrill Trail and Castle Canyon/Middle Sam Merrill Loop"</a>. <i>SummitPost.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">May 7,</span> 2011</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=SummitPost.org&rft.atitle=Lower+Sam+Merrill+Trail+and+Castle+Canyon%2FMiddle+Sam+Merrill+Loop&rft_id=http%3A%2F%2Fwww.summitpost.org%2Fpage%2F385220&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEcho+Mountain" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGannett,_Henry1905" class="citation book cs1">Gannett, Henry (1905). <a rel="nofollow" class="external text" href="https://archive.org/details/bub_gb_9V1IAAAAMAAJ"><i>The Origin of Certain Place Names in the United States</i></a>. Govt. Print. Off. pp. <a rel="nofollow" class="external text" href="https://archive.org/details/bub_gb_9V1IAAAAMAAJ/page/n112">113</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Origin+of+Certain+Place+Names+in+the+United+States&rft.pages=113&rft.pub=Govt.+Print.+Off.&rft.date=1905&rft.au=Gannett%2C+Henry&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fbub_gb_9V1IAAAAMAAJ&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEcho+Mountain" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</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.fs.usda.gov/recarea/angeles/recarea/?recid=42074">"Echo Mtn Trail via Cobb Estate"</a>. <i><a href="/wiki/U.S._Forest_Service" class="mw-redirect" title="U.S. Forest Service">U.S. Forest Service </a></i>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20190426171605/https://www.fs.usda.gov/recarea/angeles/recarea/?recid=42074">Archived</a> from the original on April 26, 2019<span class="reference-accessdate">. Retrieved <span class="nowrap">August 27,</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=U.S.+Forest+Service&rft.atitle=Echo+Mtn+Trail+via+Cobb+Estate&rft_id=http%3A%2F%2Fwww.fs.usda.gov%2Frecarea%2Fangeles%2Frecarea%2F%3Frecid%3D42074&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEcho+Mountain" 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="http://waterandpower.org/museum/Mt_Lowe_Railway.html">"Early Views of Mt. Lowe Railway"</a>. Water and Power Associates<span class="reference-accessdate">. Retrieved <span class="nowrap">February 23,</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Early+Views+of+Mt.+Lowe+Railway&rft.pub=Water+and+Power+Associates&rft_id=http%3A%2F%2Fwaterandpower.org%2Fmuseum%2FMt_Lowe_Railway.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEcho+Mountain" class="Z3988"></span></span> </li> </ol></div></div> <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=Echo_Mountain&action=edit&section=6" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><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.thaddeuslowe.name">"Professor T.S.C. Lowe by Great Great Grandson"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Professor+T.S.C.+Lowe+by+Great+Great+Grandson&rft_id=http%3A%2F%2Fwww.thaddeuslowe.name&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEcho+Mountain" class="Z3988"></span></li> <li><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.mountlowe.org">"Mount Lowe Preservation Society"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">May 8,</span> 2011</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Mount+Lowe+Preservation+Society&rft_id=http%3A%2F%2Fwww.mountlowe.org&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEcho+Mountain" class="Z3988"></span></li> <li><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.mtlowe.co">"Mount Lowe Volunteers"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">February 22,</span> 2012</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Mount+Lowe+Volunteers&rft_id=http%3A%2F%2Fwww.mtlowe.co&rfr_id=info%3Asid%2Fen.wikipedia.org%3AEcho+Mountain" class="Z3988"></span></li></ul>    </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" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Echo_Mountain&oldid=1213402659">https://en.wikipedia.org/w/index.php?title=Echo_Mountain&oldid=1213402659</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:San_Gabriel_Mountains" title="Category:San Gabriel Mountains">San Gabriel Mountains</a></li><li><a href="/wiki/Category:Mountains_of_Los_Angeles_County,_California" title="Category:Mountains of Los Angeles County, California">Mountains of Los Angeles County, California</a></li><li><a href="/wiki/Category:Altadena,_California" title="Category:Altadena, California">Altadena, California</a></li><li><a href="/wiki/Category:Angeles_National_Forest" title="Category:Angeles National Forest">Angeles National Forest</a></li><li><a href="/wiki/Category:Mountains_of_Southern_California" title="Category:Mountains of Southern California">Mountains of Southern California</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden categories: <ul><li><a href="/wiki/Category:Pages_using_gadget_WikiMiniAtlas" title="Category:Pages using gadget WikiMiniAtlas">Pages using gadget WikiMiniAtlas</a></li><li><a href="/wiki/Category:Articles_with_short_description" title="Category:Articles with short description">Articles with short description</a></li><li><a href="/wiki/Category:Short_description_is_different_from_Wikidata" title="Category:Short description is different from Wikidata">Short description is different from Wikidata</a></li><li><a href="/wiki/Category:Use_mdy_dates_from_March_2024" title="Category:Use mdy dates from March 2024">Use mdy dates from March 2024</a></li><li><a href="/wiki/Category:Coordinates_on_Wikidata" title="Category:Coordinates on Wikidata">Coordinates on Wikidata</a></li><li><a href="/wiki/Category:All_articles_with_unsourced_statements" title="Category:All articles with unsourced statements">All articles with unsourced statements</a></li><li><a href="/wiki/Category:Articles_with_unsourced_statements_from_July_2009" title="Category:Articles with unsourced statements from July 2009">Articles with unsourced statements from July 2009</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 12 March 2024, at 20:56<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. 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