Coquihalla Mountain

{{short description|Extinct stratovolcano in British Columbia, Canada}}

{{Infobox mountain

| name = Coquihalla Mountain

| photo = Coquihalla Mountain east aspect.jpg

| photo_caption = Eastern flank of Coquihalla Mountain

| map = British Columbia

| map_caption = Location in British Columbia

| mapframe = yes

| mapframe-zoom = 8

| mapframe-caption = Interactive map of Coquihalla Mountain

| elevation_m = 2157

| elevation_ref =

| prominence_m = 816

| prominence_ref =

| listing = List of volcanoes in Canada{{clear}}List of Cascade volcanoes

| location = British Columbia, Canada

| district = Yale Division Yale Land District

| range = Bedded Range

| coordinates = {{coord|49|31|30.0|N|121|03|36.0|W|type:mountain}}

| topo_maker = NTS

| topo_map = {{Canada NTS Map Sheet|92|H|11}}

| type = Stratovolcano

| age = 22 million years

| volcanic_arc/belt = Pemberton Volcanic Belt
Canadian Cascade Arc

| last_eruption = 21 million years

| first_ascent =

| easiest_route =

}}

Coquihalla Mountain is an extinct stratovolcano in Similkameen Country, southwestern British Columbia, Canada, located {{Convert|10|km|mi|abbr=on}} south of Falls Lake and {{Convert|22|km|mi|abbr=on}} west of Tulameen between the Coquihalla and Tulameen rivers. With a topographic prominence of {{Convert|816|m|ft|abbr=on}}, it towers above adjacent mountain ridges. It is the highest mountain in the Bedded Range of the northern Canadian Cascades with an elevation of {{Convert|2157|m|ft|abbr=on}} and lies near the physiographic boundaries with the Coast Mountains on the west and the Interior Plateau on the east.

Geology

Coquihalla Mountain is a major preserved feature in the Miocene age Pemberton Volcanic Belt that was erupting about 21 to 22 million years ago.[http://www.gsajournals.org/perlserv/?request=get-document&doi=10.1130%2FGES00020.1 Cenozoic to Recent plate configurations in the Pacific Basin: Ridge subduction and slab window magmatism in western North America][https://www.for.gov.bc.ca/hfd/library/ffip/Monger_JWH1994_pt7.pdf Character of volcanism, volcanic hazards, and risk, northern end of the Cascade magmatic arc, British Columbia and Washington State] Like the Pemberton Volcanic Belt, Coquihalla Mountain formed as result of Cascadia subduction.

See also

References

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