Collier Glacier

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Collier Glacier
Three Sisters Viewpoint.jpg
The Collier Glacier is between North Sister (left) and Middle Sister.
Location in Oregon
Location in Oregon
Collier Glacier
Location in Oregon
Type Mountain glacier
Location Cascade Range, Lane County, Oregon, U.S.
Coordinates 44°09′54″N 121°47′06″W / 44.16500°N 121.78500°W / 44.16500; -121.78500Coordinates: 44°09′54″N 121°47′06″W / 44.16500°N 121.78500°W / 44.16500; -121.78500[1]
Length 5,000 ft (1,500 m)
Terminus Barren rock
Status Retreating

Collier Glacier is in the U.S. state of Oregon. The glacier is situated in the Cascade Range at an elevation generally above 8,000 feet (2,400 m). Collier Glacier is on the west slopes of North Sister, an extinct shield volcano.[2] Since its last maximum extent during the Little Ice Age (1350–1850 A.D.) the glacier has retreated over a mile.[3]

See also[edit]


  1. ^ "Collier Glacier". Geographic Names Information System. United States Geological Survey. Retrieved 2012-07-29. 
  2. ^ North Sister, OR (Map). TopoQwest (United States Geological Survey Maps). Retrieved 2012-07-15. 
  3. ^ Ramsayer, Kate (October 22, 2007). "Disappearing glaciers". The Bulletin. Bend, Oregon. Retrieved July 15, 2012.