# Chipmunk Mountain

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> Source: https://en.wikipedia.org/wiki/Chipmunk_Mountain
> Source revision: 1355607699
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

{{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](/source/British_Columbia), [Canada](/source/Canada)
| district         = [Lillooet Land District](/source/Lillooet_Land_District)
| range            = [Pacific Ranges](/source/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](/source/National_Topographic_System)
| topo_map         = {{Canada NTS Map Sheet|92|J|10}}
| type             = 
| age              = {{nowrap|26.8 ± 1.4}} Ma
| volcanic_arc     = [Canadian Cascade Arc](/source/Canadian_Cascade_Arc)
| volcanic_belt    = [Pemberton Volcanic Belt](/source/Pemberton_Volcanic_Belt)
| last_eruption    = [Miocene](/source/Miocene) age
| first_ascent     = 
| easiest_route    = 
}}
'''Chipmunk Mountain''' is a [mountain](/source/mountain) in southwestern [British Columbia](/source/British_Columbia), Canada, located {{nowrap|{{Convert|23|km|mi|abbr=on}}}} southwest of [Bralorne](/source/Bralorne%2C_British_Columbia). It has an elevation of {{nowrap|{{Convert|2390|m|ft|abbr=on}}}} and a [topographic prominence](/source/topographic_prominence) of {{nowrap|{{Convert|540|m|ft|abbr=on}}}}, making it the highest point on an east-trending [scree](/source/scree)d ridge. This horn-like [rocky tower](/source/Rock_pinnacle) is similar to [The Black Tusk](/source/The_Black_Tusk) in [Garibaldi Provincial Park](/source/Garibaldi_Provincial_Park).

The mountain was named in 1920 by James Landsborough after a summit party had given lunch scraps to a [chipmunk](/source/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](/source/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 rock](/source/volcanic_rock)s comprising Chipmunk Mountain crop out in a {{nowrap|{{Convert|12|km2|mi2|abbr=on}}}} area and consist of [pyroclastic rock](/source/pyroclastic_rock)s, [sills](/source/sill_(geology)) and [dikes](/source/dike_(geology)). These volcanic rocks range from [basalt](/source/basalt)s to [rhyolite](/source/rhyolite)s, with the majority classifying as [basaltic andesite](/source/basaltic_andesite)s and [andesite](/source/andesite)s. They are closely related to the [calc-alkaline](/source/calc-alkaline) volcanic centres of the [Pemberton Volcanic Belt](/source/Pemberton_Volcanic_Belt), indicating the volcanic rocks comprising Chipmunk Mountain were created as a result of [volcanism](/source/volcanism) in the [Canadian Cascade Arc](/source/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](/source/List_of_volcanoes_in_Canada)
*[List of Cascade volcanoes](/source/List_of_Cascade_volcanoes)
*[Volcanism of Western Canada](/source/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

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Adapted from the Wikipedia article [Chipmunk Mountain](https://en.wikipedia.org/wiki/Chipmunk_Mountain) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Chipmunk_Mountain?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.