| Old Sun Glacier | |
|---|---|
 Old Sun Glacier is the prominent snowfield in the background on the north slope of Mount Merritt at center | |
  Old Sun Glacier Location in Montana | |
| Type | Mountain glacier |
| Location | Glacier National Park, Glacier County, Montana, U.S. |
| Coordinates | 48°52′21″N 113°46′38″W / 48.87250°N 113.77722°W[1] |
| Area | Approximately 91 acres (0.37 km2) in 2005[2] |
| Length | .30 mi (0.48 km) |
| Terminus | Rockfall |
| Status | Retreating |
Old Sun Glacier is in Glacier National Park in the U.S. state of Montana. The glacier is situated immediately to the east and northeast of Mount Merritt at an elevation between 9,400 and 8,600 ft (2,900 and 2,600 m) above sea level.[3] The glacier was named after a sun priest of the Blackfoot called "Ntas", translated to Old Sun.[4] Old Sun Glacier has numerous crevasses and appears to have a healthy accumulation zone. Old Sun Glacier lost 12 percent of its surface area between 1966 and 2005.[2]
- ^ "Old Sun Glacier". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved September 23, 2012.
- ^ a b "Retreat of Glaciers in Glacier National Park" (PDF). United States Geological Survey. 2010. Retrieved September 23, 2012.
- ^ Ahern Pass, MT (Map). TopoQwest (United States Geological Survey Maps). Retrieved September 23, 2012.
- ^ "Historic Place Names". Through the Years in Glacier National Park. National Park Service. Retrieved September 23, 2012.