Cayoosh Mountain

Mountain summit in British Columbia, Canada

Cayoosh Mountain

Location in British Columbia

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Cayoosh Mountain

Cayoosh Mountain (Canada)

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LocationBritish Columbia, CanadaParent rangeCayoosh Range
Lillooet Ranges
Pacific Coast RangesTopo mapNTS 92J7 Pemberton^[2]ClimbingEasiest routeScrambling via South Ridge

Cayoosh Mountain is a 2,561-metre (8,402-foot) mountain summit located in the Cayoosh Range in southwestern British Columbia, Canada. It is situated 22 km (14 mi) east-northeast of Pemberton, 12 km (7 mi) north-northeast of Lillooet Lake, and immediately north of Cayoosh Pass. Its nearest higher peak is Mount Marriott, 5.43 km (3 mi) to the north-northeast.^[3] Precipitation runoff from the peak drains into Cayoosh Creek and other tributaries of the Fraser River. The mountain's name was submitted by Karl Ricker, a mountaineer, and was officially adopted on January 23, 1979, by the Geographical Names Board of Canada.^[2]^[4]

Climate

Based on the Köppen climate classification, Cayoosh Mountain is located in a subarctic climate zone of western North America.^[5] Most weather fronts originate in the Pacific Ocean, and travel east toward the Coast Mountains where they are forced upward by the range (Orographic lift), causing them to drop their moisture in the form of rain or snowfall. As a result, the Coast Mountains experience high precipitation, especially during the winter months in the form of snowfall. Winter temperatures can drop below −20 °C with wind chill factors below −30 °C. This climate supports a glacier on the northeast slope of this mountain. The months July through September offer the most favorable weather for climbing Cayoosh Mountain.

Climbing Routes

Established climbing routes on Cayoosh Mountain:^[1]

East Face - a winter route
Southwest Ridge - class 3 First ascent 1978
South Ridge - class 3
North Ridge - class 3

Gallery

Cayoosh Mountain reflection
Cayoosh Mountain, southern aspect, as seen from Slalok Mountain
(Mt. Marriott in upper right)
Cayoosh Mountain in winter

References

^ ^a ^b ^c ^d "Cayoosh Mountain". Bivouac.com. Retrieved 2019-11-09.
^ ^a ^b ^c "Cayoosh Mountain". Geographical Names Data Base. Natural Resources Canada. Retrieved 2019-11-09.
^ "Cayoosh Mountain, British Columbia". Peakbagger.com. Retrieved 2019-11-09.
^ "Cayoosh Mountain". BC Geographical Names.
^ Peel, M. C.; Finlayson, B. L.; McMahon, T. A. (2007). "Updated world map of the Köppen−Geiger climate classification". Hydrol. Earth Syst. Sci. 11. ISSN 1027-5606.