{{Short description|Volcanic mountain in British Columbia, Canada}} {{Infobox mountain | name = Chipmunk Mountain | image = Chipmunk Mountain BC.jpg | image_caption = Summit of Chipmunk Mountain | image_alt = | elevation_m = 2390 | elevation_ref = <ref name=bivouac>{{cite bivouac|id=1032|name=Chipmunk Mountain|accessdate=2012-09-16}}</ref> | prominence_m = 540 | prominence_ref = <ref name=bivouac/> | location = British Columbia, Canada | district = Lillooet Land District | range = Pacific Ranges | map = Canada British Columbia | map_caption = Location in British Columbia | map_alt = | label_position = below | mapframe = yes | mapframe-zoom = 8 | mapframe-caption = Interactive map of Chipmunk Mountain | coordinates = {{coord|50|34|50|N|122|55|56|W|type:mountain_region:CA-BC_scale:100000|format=dms|display=inline,title}} | coordinates_ref = <ref name="AD"/> | topo_maker = NTS | topo_map = {{Canada NTS Map Sheet|92|J|10}} | type = | age = {{nowrap|26.8 ± 1.4}} Ma | volcanic_arc = Canadian Cascade Arc | volcanic_belt = Pemberton Volcanic Belt | last_eruption = Miocene age | first_ascent = | easiest_route = }} '''Chipmunk Mountain''' is a mountain in southwestern British Columbia, Canada, located {{nowrap|{{Convert|23|km|mi|abbr=on}}}} southwest of Bralorne. It has an elevation of {{nowrap|{{Convert|2390|m|ft|abbr=on}}}} and a topographic prominence of {{nowrap|{{Convert|540|m|ft|abbr=on}}}}, making it the highest point on an east-trending screed ridge. This horn-like rocky tower is similar to The Black Tusk in Garibaldi Provincial Park.
The mountain was named in 1920 by James Landsborough after a summit party had given lunch scraps to a chipmunk.<ref name="AD">{{BCGNIS|id=26766|name=Chipmunk Mountain|accessdate=2012-09-16}}</ref>
==Geology== Chipmunk Mountain is the remains of an extinct volcano that formed during the Miocene epoch.<ref name="AD"/><ref name="SI">{{cite journal|last=Fretschmar|first=Laura M.|title=The Vermont Geological Society Spring Meeting for the Presentation of Student Papers|journal=Miocene Volcanism in Southwestern British Columbia: Geochemistry and Tectonic Implications|publisher=The Green Mountain Geologist|volume=21|number=1|pages=7, 8|year=1994}}</ref> The volcanic rocks comprising Chipmunk Mountain crop out in a {{nowrap|{{Convert|12|km2|mi2|abbr=on}}}} area and consist of pyroclastic rocks, sills and dikes. These volcanic rocks range from basalts to rhyolites, with the majority classifying as basaltic andesites and andesites. They are closely related to the calc-alkaline volcanic centres of the Pemberton Volcanic Belt, indicating the volcanic rocks comprising Chipmunk Mountain were created as a result of volcanism in the Canadian Cascade Arc. The volcanic rocks have been dated to be {{nowrap|26.8 ± 1.4}} million years old, which correlates with the time of Pemberton Belt volcanism.<ref name="SI"/>
==Gallery== <gallery> Chipmunk Peak.jpg|Chipmunk Mountain, northeast aspect Chipmunk Mountain summit.jpg|Chipmunk Mountain </gallery>
==See also== *List of volcanoes in Canada *List of Cascade volcanoes *Volcanism of Western Canada
==References== {{reflist}}
==External links== *{{cite cgndb|id=JBVVD|title=Chipmunk Mountain|accessdate=2012-09-16}} *{{cite bivouac|id=1032|title=Chipmunk Mountain|accessdate=2012-09-16}}
Category:Two-thousanders of British Columbia Category:Pemberton Volcanic Belt Category:Subduction volcanoes Category:Miocene volcanoes Category:Extinct volcanoes of British Columbia Category:Pacific Ranges Category:Polygenetic volcanoes Category:Pemberton Valley Category:Paleogene British Columbia