Mount Helen (Montana) Explained

Mount Helen
Elevation Ref:[1]
Prominence Ft:940
Location:Glacier County / Flathead County
Montana, United States
Range:Lewis Range
Map:Montana#USA
Relief:1
Coordinates:48.4747°N -113.4668°W
Coordinates Ref:[2]
Topo:USGS Mount Rockwell
First Ascent:Unknown
Easiest Route:Scramble

Mount Helen (8538feet) 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 3100feet 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 31NaN1 thick, 50miles wide and 160miles 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

Notes and References

  1. 50343. Mount Helen, Montana. May 23, 2018.
  2. 772320. Mount Helen. May 23, 2018.
  3. TopoQwest (United States Geological Survey Maps). Mount Rockwell, MT. June 13, 2018.
  4. Web site: Mount Helen. Summitpost.org. 19 April 2019.
  5. Geology of the Rocky Mountains and Columbias . Gadd, Ben . 2008.
  6. Peel, M. C. . Finlayson, B. L. . McMahon, T. A. . 2007 . Updated world map of the Köppen−Geiger climate classification . Hydrol. Earth Syst. Sci. . 11 . 5 . 1633–1644 . 10.5194/hess-11-1633-2007 . 2007HESS...11.1633P . 9654551 . 1027-5606. free .