geo.wikisort.org - Mountains

Arras Mountain is a 3,090-metre (10,138 ft) mountain summit located in the Canadian Rockies of British Columbia, Canada. Arras Mountain is situated immediately northeast of the confluence of Icefall Brook with Valenciennes River, 7.2 km (4.5 mi) east-southeast of Rostrum Peak, and 6 km (3.7 mi) west of Valenciennes Mountain, and all are in the Kootenay Land District. The peak was named in 1921 to commemorate the World War I battlefield at Arras, France, where Canadian troops fought in the first battle April 1917, and in the second battle August 1918.[6][1] The name was officially adopted in 1924 when approved by the Geographical Names Board of Canada.[5]

Arras Mountain
Northwest aspect in winter
Highest point
Elevation	3,090 m (10,140 ft)[1][2][3]
Prominence	1,699 ft (518 m)[4]
Parent peak	Valenciennes Mountain (3,150 m)[4]
Isolation	3.4 mi (5.5 km)[4]
Listing	Mountains of British Columbia
Coordinates	51°48′34″N 117°04′54″W[5]
Geography
Arras Mountain Location in British Columbia Show map of British Columbia Arras Mountain Arras Mountain (Canada) Show map of Canada
Country	Canada
Province	British Columbia
District	Kootenay Land District
Parent range	Canadian Rockies
Topo map	NTS 82N14 Rostrum Peak[5]
Geology
Age of rock	Cambrian
Type of rock	sedimentary rock
Climbing
Easiest route	Mountaineering

Geology

Arras Mountain is composed of sedimentary rock laid down during the Precambrian to Jurassic periods. Formed in shallow seas, this sedimentary rock was pushed east and over the top of younger rock during the Laramide orogeny.[7] The northwest aspect of the mountain conspicuously displays vertically-tilted anticlinal strata. Topographic relief is significant as the west aspect of the peak rises over 2,000 m (6,600 ft) above Icefall Brook in less than two kilometres.

Climate

Based on the Köppen climate classification, Arras Mountain is located in a subarctic climate zone with cold, snowy winters, and mild summers.[8] Temperatures can drop below −20 °C with wind chill factors below −30 °C. Precipitation runoff drains to the Icefall Brook and Valenciennes River.

See also

• Geography of British Columbia

References

External links

• Weather: Arras Mountain

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