Claimpost Peak

CountryCanadaProvinceBritish ColumbiaDistrictKamloops Division Yale Land DistrictProtected areaStein Valley Nlaka'pamux Heritage ParkParent rangeLillooet Ranges
Coast MountainsTopo mapNTS 92I4 Lytton^[3]

Claimpost Peak is a 2,671-metre (8,763-foot) mountain summit located in British Columbia, Canada.

This remote peak is situated 23 km (14 mi) west-southwest of Lytton on the eastern boundary of Stein Valley Nlaka'pamux Heritage Park.^[4] It is part of the Lillooet Ranges of the Coast Mountains. The nearest neighbor is Antimony Mountain 1.03 km (1 mi) to the south, and the nearest higher neighbor is Skihist Mountain, 1.54 km (1 mi) to the northwest.^[1] Precipitation runoff from the peak's south and east sides drains to Kwoiek Creek, thence Fraser River, whereas the west slope drains into headwaters of Nesbitt Creek → Stein River → Fraser River. Topographic relief is significant as the summit rises 800 metres (2,625 ft) above Antimony Lake in approximately 1.5 km (0.93 mi) and 900 metres (2,953 ft) above an unnamed lake to the east in 1.5 km (0.93 mi).

The mountain was named by a 1973 climbing party that found old wooden claim posts lying on the summit area.^[4] The toponym was officially adopted on January 23, 1979, by the Geographical Names Board of Canada.^[4]

Based on the Köppen climate classification, Claimpost Peak 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. The months July through September offer the most favorable weather for climbing Claimpost Peak.

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