Ptarmigan Glacier
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]
| Ptarmigan Glacier | |
|---|---|
  Ptarmigan Glacier | |
| Type | Mountain glacier |
| Coordinates | 48°08′08″N 121°07′38″W[1] |
| Length | .60 mi (0.97 km) |
| Terminus | Talus |
| Status | Retreating |
References
- "Ptarmigan Glacier". Geographic Names Information System. United States Geological Survey. Retrieved 2012-11-24.
- Lime Mountain, WA (Map). TopoQwest (United States Geological Survey Maps). Retrieved 2012-11-24.
- Monroe, James; Reed Wicander (2011). The Changing Earth: Exploring Geology and Evolution. Cengage Learning. p. 349. ISBN 9780840062086. Retrieved 2012-11-24.
- Pelto, Mauri (2007). "Glacier Peak A Century Of Change". North Cascade Glacier Climate Project. Nichols College. Archived from the original on 2012-03-19. Retrieved 2012-11-24.
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