Angel Wing (Glacier National Park)

Angel Wing is a 7,430-foot (2,260-meter) elevation mountain summit located in the Lewis Range, of Glacier National Park in the U.S. state of Montana. It is situated one mile east of the Continental Divide, in Glacier County. It can be seen from the Many Glacier area, and up close from the Grinnell Glacier Trail. Topographic relief is significant as the north aspect rises nearly 2,500 feet (760 meters) above Grinnell Lake in one-half mile.

Angel Wing
North aspect (centered), from Grinnell Glacier Trail
Highest point
Elevation7,430 ft (2,265 m)[1]
Prominence470 ft (140 m)[1]
Parent peakMount Gould (9,557 ft)
Isolation0.61 mi (0.98 km)[2]
Coordinates48°45′26″N 113°42′42″W[3]
Geography
Angel Wing is located in Montana
Angel Wing
Angel Wing
Location in Montana
Angel Wing is located in the United States
Angel Wing
Angel Wing
Location in the United States
LocationGlacier National Park
Glacier County, Montana, U.S.
Parent rangeLewis Range
Topo mapUSGS Many Glacier
Geology
Age of rockMiddle Proterozoic
Type of rockSedimentary rock

Climate

Based on the Köppen climate classification, Angel Wing is located in an alpine subarctic climate zone with long, cold, snowy winters, and cool to warm summers.[4] Temperatures can drop below −10 °F with wind chill factors below −30 °F. Precipitation runoff from the peak drains into Grinnell and Cataract Creeks, which are part of the St. Mary River drainage basin.

Geology

Like other mountains in Glacier National Park, Angel Wing 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] The summit is composed of Empire Formation of the Neogene period, and it overlays the Grinnell Formation which is a layer of sandstone and argillite.[6]

  • Angel Wing (centered) reflected in Lake Josephine with Mt. Gould (behind, left)
    Angel Wing (centered) reflected in Lake Josephine with Mt. Gould (behind, left)
  • Angel Wing (centered) with Allen Mountain beyond
    Angel Wing (centered) with Allen Mountain beyond
  • West aspect
    West aspect
  • Angel Wing centered, with Upper Grinnell Lake
    Angel Wing centered, with Upper Grinnell Lake
  • North aspect, with Grinnell Lake
    North aspect, with Grinnell Lake
  • North aspect with Mt. Gould behind
    North aspect with Mt. Gould behind
  • Angel Wing from Grinnell Lake
    Angel Wing from Grinnell Lake
  • Grinnell Lake and Angel Wing
    Grinnell Lake and Angel Wing
  • Angel Wing (centered), Grinnell Falls, Mt. Gould
    Angel Wing (centered), Grinnell Falls, Mt. Gould
  • Mt. Gould, Angel Wing, Mt. Grinnell
    Mt. Gould, Angel Wing, Mt. Grinnell
  • Aerial view, circa 1925
    Aerial view, circa 1925

See also

References
  1. "Angel Wing, Montana". Peakbagger.com. Retrieved 2021-08-08.
  2. "Angel Wing - 7,430' MT". listsofjohn.com. Retrieved 2021-08-08.
  3. "Angel Wing". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2021-08-08.
  4. Peel, M. C.; Finlayson, B. L.; McMahon, T. A. (2007). "Updated world map of the Köppen−Geiger climate classification". Hydrol. Earth Syst. Sci. 11: 1633–1644. ISSN 1027-5606.
  5. Gadd, Ben (2008). "Geology of the Rocky Mountains and Columbias". {{cite journal}}: Cite journal requires |journal= (help)
  6. Rockwell, David B, Exploring Glacier National Park, 2002, Falcon, ISBN 9780762723546, pages 10, 19.
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