Piegan Mountain (9,225 feet (2,812 m)) is located in the Lewis Range, Glacier National Park in the U.S. state of Montana.[3] Piegan Glacier is located in a cirque immediately southeast of the summit.

Piegan Mountain
Northeast aspect, with Piegan Glacier
Highest point
Elevation	9,225 ft (2,812 m)[1]
Prominence	660 ft (200 m)[1]
Coordinates	48°42′37″N 113°41′18″W[2]
Geography
Piegan Mountain Location in Montana Show map of Montana Piegan Mountain Location in the United States Show map of the United States
Location	Glacier County, Montana, U.S.
Parent range	Lewis Range
Topo map	USGS Logan Pass, MT
Geology
Age of rock	Cambrian
Type of rock	Sedimentary rock

Geology

Like other mountains in Glacier National Park, Piegan Mountain is composed of sedimentary rock laid down during the Precambrian to Jurassic periods. Formed in shallow seas, this sedimentary rock was initially uplifted beginning 170 million years ago when the Lewis Overthrust fault pushed an enormous slab of precambrian rocks 3 mi (4.8 km) thick, 50 miles (80 km) wide and 160 miles (260 km) long over younger rock of the cretaceous period.[4]

Climate

Based on the Köppen climate classification, it is located in an alpine subarctic climate zone with long, cold, snowy winters, and cool to warm summers.[5] Temperatures can drop below −10 °F with wind chill factors below −30 °F.

See also

• Mountains and mountain ranges of Glacier National Park (U.S.)
• Geology of the Rocky Mountains

References

External links

• National Park Service web site: Glacier National Park
• Piegan Mountain weather: Mountain Forecast

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