Piegan Mountain
Mountain in Montana, United States
From Wikipedia, the free encyclopedia
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  Piegan Mountain Location in the United States | |
| Location | Glacier County, Montana, U.S. |
| Parent range | Lewis Range |
| Topo map(s) | USGS Logan Pass, MT |
| Geology | |
| Rock age | Cambrian |
| Rock type | 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
