Pinnacle Peak (Yukon)

Pinnacle Peak is a remote 3,714-meter-elevation (12,184-foot) mountain summit of the Saint Elias Mountains, in Kluane National Park of Yukon, Canada. It ranks as the 37th-highest officially named mountain in Canada.[5] It is situated at the head of the South Arm of the Kaskawulsh Glacier. Topographic relief is significant as the summit rises 1,500 meters (4,920 feet) above the Dusty Glacier in 3.5 kilometers (2.2 miles). Neighbors include Mount Kennedy, 14 km to the south, and Mount Alverstone, 14 km to the south-southwest.

Pinnacle Peak
Pinnacle Peak, northeast aspect
Highest point
Elevation3,714 m (12,185 ft)[1][2]
Prominence880 m (2,890 ft)[3]
Parent peakPeak 12401[3]
Isolation11.57 km (7.19 mi)[3]
Coordinates60°27′43″N 138°58′33″W[4]
Geography
Pinnacle Peak is located in Yukon
Pinnacle Peak
Pinnacle Peak
Location in Yukon, Canada
LocationKluane National Park
Yukon, Canada
Parent rangeSaint Elias Mountains
Topo mapNTS 115B7 Mount Kennedy
Climbing
First ascentApril 20, 1965
Easiest routeWest Ridge

Climate

Based on the Köppen climate classification, Pinnacle Peak is located in a subarctic climate zone with long, cold, winters, and short, cool summers.[6] Winter temperatures can drop below −30 °C with wind chill factors below −50 °C. This climate supports the Kaskawulsh, Dusty, and Lowell glaciers surrounding the peak.

Climbing

The first ascent of the summit was made April 20, 1965, led by Ed Boulton, along with Alvin Randall, Ome Daiber, Dave McBrayer, Bob Booher, and Arnie Bloomer via the west ridge.[1] In May 1974, Harry Bowron, Hugh Ewing, Kirk Keogh, and Bruce Carson made first ascents of the east and north ridges.[2] The third ascent took place in 1990, and was the first by Canadian mountaineers, a group which included Bill McKenzie, Bill Geddes, Roger Wallis, Glynis Peters, Yan Huckendubler, Gord Gruber, and Joe Prokopiak.[7]

See also

References
  1. Alvin E. & Frances Randall (1966). "North America, Canada, Yukon Territory, Pinnacle Peak". American Alpine Journal. Retrieved 2021-12-17.
  2. Bruce Carson (1975). "North America, Canada, Yukon Territory, Pinnacle Peak". American Alpine Journal. Retrieved 2021-12-17.
  3. "Pinnacle Peak - 12,139' YT". listsofjohn.com. Retrieved 2021-12-16.
  4. "Pinnacle Peak". Geographical Names Data Base. Natural Resources Canada. Retrieved 2021-12-05.
  5. Pinnacle Peak, Peakvisor.com
  6. 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.
  7. Roger Wallis (1991). "North America, Canada, Yukon Territory, Pinnacle Peak and Other Ascents". American Alpine Journal. Retrieved 2021-12-17.
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