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
Elevation9,225 ft (2,812 m)[1]
Prominence660 ft (200 m)[1]
Coordinates48°42′37″N 113°41′18″W[2]
Geography
Piegan Mountain
Location in Montana
Piegan Mountain
Location in the United States
LocationGlacier County, Montana, U.S.
Parent rangeLewis Range
Topo mapUSGS Logan Pass, MT
Geology
Age of rockCambrian
Type of rockSedimentary 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

  1. "Piegan Mountain, Montana". Peakbagger.com. Retrieved December 27, 2018.
  2. "Piegan Mountain". Geographic Names Information System. United States Geological Survey. Retrieved December 27, 2018.
  3. Logan Pass, MT (Map). TopoQwest (United States Geological Survey Maps). Retrieved December 27, 2018.
  4. Gadd, Ben (2008). "Geology of the Rocky Mountains and Columbias". Cite journal requires |journal= (help)


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