- Source: Boulder Glacier (Montana)
- Taman Nasional Glacier
- Daftar county dan daerah setingkat county di Amerika Serikat
- Boulder Glacier (Montana)
- Boulder Glacier
- Boulder Peak
- List of glaciers in the United States
- Glacial erratic
- Montana
- List of trails of Glacier County, Montana
- Outline of Glacier National Park (U.S.)
- Regions of Montana
- List of glaciers in Glacier National Park (U.S.)
Boulder Glacier is located in the U.S. state of Montana in Glacier National Park (U.S.). The glacier is situated to the north of Boulder Peak and west of the Continental Divide. Between 1966 and 2005, Boulder Glacier lost more than 75 percent of its surface area. As of 2005 the glacier was measured to cover only 13 acres (0.053 km2), and no longer met the 25 acres (0.10 km2) threshold often cited as the minimal area to qualify as an active glacier.
Boulder Glacier was photographed in 2007 by researchers from the U.S. Geological Survey and those images demonstrate that the glacier has almost disappeared. Earlier images taken in 1910 depict a glacier that was far larger than what was recorded in 2007.
See also
List of glaciers in the United States
Glaciers in Glacier National Park (U.S.)