| Mount Helen | |
|---|---|
 Mount Helen from Two Medicine Valley | |
| Highest point | |
| Elevation | 8,538 ft (2,602 m)
[1] |
| Prominence | 940 ft (290 m) [1] |
| Coordinates | 48°28′29″N 113°28′00″W / 48.4746886°N 113.466769°W [2] |
| Geography | |
  Mount Helen Location in Montana  Mount Helen Location in the United States | |
| Location |
Glacier County /
Flathead County Montana, United States |
| Parent range | Lewis Range |
| Topo map | USGS Mount Rockwell |
| Climbing | |
| First ascent | Unknown |
| Easiest route | Scramble |
Mount Helen (8,538 feet (2,602 m)) is located in the Lewis Range, Glacier National Park in the U.S. state of Montana. [3] Mount Helen rises immediately to the northwest roughly 3,100 feet (940 m) above Upper Two Medicine Lake in the southeastern part of Glacier National Park. [4] The Continental Divide of the Americas passes over the summit of Mount Helen.
Geology
Like the mountains in Glacier National Park, Mt. Helen 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. [5]
Climate
Based on the Köppen climate classification, Mt. Helen is located in an alpine subarctic climate zone characterized by long, usually very cold winters, and short, cool to mild summers. [6] Temperatures can drop below −10 °F with wind chill factors below −30 °F.
See also
References
- ^ a b "Mount Helen, Montana". Peakbagger.com. Retrieved May 23, 2018.
- ^ "Mount Helen". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved May 23, 2018.
- ^ Mount Rockwell, MT (Map). TopoQwest (United States Geological Survey Maps). Retrieved June 13, 2018.
- ^ "Mount Helen". Summitpost.org. Retrieved 19 April 2019.
-
^ Gadd, Ben (2008). "Geology of the Rocky Mountains and Columbias".
{{ cite journal}}: Cite journal requires|journal=( help) - ^ Peel, M. C.; Finlayson, B. L.; McMahon, T. A. (2007). "Updated world map of the Köppen−Geiger climate classification" (PDF). Hydrol. Earth Syst. Sci. 11 (5): 1633–1644. Bibcode: 2007HESS...11.1633P. doi: 10.5194/hess-11-1633-2007. ISSN 1027-5606. S2CID 9654551.
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