Piegan Mountain
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 | |
|---|---|
 Piegan Mountain with Piegan Glacier seen from Preston Park | |
| 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 | 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]
See also
References
- "Piegan Mountain, Montana". Peakbagger.com. Retrieved December 27, 2018.
- "Piegan Mountain". Geographic Names Information System. United States Geological Survey. Retrieved December 27, 2018.
- Logan Pass, MT (Map). TopoQwest (United States Geological Survey Maps). Retrieved December 27, 2018.
- Gadd, Ben (2008). "Geology of the Rocky Mountains and Columbias". Cite journal requires
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External links
- National Park Service web site: Glacier National Park
- Piegan Mountain weather: Mountain Forecast
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