Cayoosh Mountain

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]

Cayoosh Mountain
Cayoosh Mountain, northern aspect
Highest point
Elevation2,561 m (8,402 ft) [1]
Prominence671 m (2,201 ft) [1]
Parent peakMount Marriott (2735 m)[1]
Coordinates50°24′08″N 122°31′26″W [2]
Geography
Cayoosh Mountain
Location in British Columbia
Cayoosh Mountain
Cayoosh Mountain (Canada)
LocationBritish Columbia, Canada
Parent rangeCayoosh Range
Lillooet Ranges
Coast Ranges
Topo mapNTS 92J/7
Climbing
Easiest routeScrambling via South Ridge

Climate
Cayoosh Mountain in winter

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. 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]

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

References
  1. "Cayoosh Mountain". Bivouac.com. Retrieved 2019-11-09.
  2. "Cayoosh Mountain". Geographical Names Data Base. Natural Resources Canada. Retrieved 2019-11-09.
  3. "Cayoosh Mountain, British Columbia". Peakbagger.com. Retrieved 2019-11-09.
  4. "Cayoosh Mountain". BC Geographical Names.
  5. 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.

See also
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