Ptarmigan Glacier

Ptarmigan Glacier
Map showing the location of Ptarmigan Glacier
Ptarmigan Glacier

Glacier Peak, Snohomish County, Washington, USA

Type Mountain glacier
Coordinates 48°08′08″N 121°07′38″W / 48.13556°N 121.12722°W / 48.13556; -121.12722Coordinates: 48°08′08″N 121°07′38″W / 48.13556°N 121.12722°W / 48.13556; -121.12722[1]
Length .60 mi (0.97 km)
Terminus Talus
Status Retreating

Ptarmigan Glacier is located on north slopes of Glacier Peak in the U.S. state of Washington.[2] As is true with all the glaciers found on Glacier Peak, Ptarmigan Glacier is retreating.[3] During the Little Ice Age, Ptarmigan Glacier extended down to an altitude of 4,444 ft (1,355 m) but aside from a small advance during the 1970s, has retreated significantly since the end of the Little Ice Age.[4]

See also

References

  1. ↑ "Ptarmigan Glacier". Geographic Names Information System. United States Geological Survey. Retrieved 2012-11-24.
  2. ↑ Lime Mountain, WA (Map). TopoQwest (United States Geological Survey Maps). Retrieved 2012-11-24.
  3. ↑ Monroe, James; Reed Wicander (2011). The Changing Earth: Exploring Geology and Evolution. Cengage Learning. p. 349. ISBN 9780840062086. Retrieved 2012-11-24.
  4. ↑ Pelto, Mauri (2007). "Glacier Peak A Century Of Change". North Cascade Glacier Climate Project. Nichols College. Retrieved 2012-11-24.
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