Boulder Glacier (Washington)

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Boulder Glacier is located on the southeast slope of Mount Baker, a stratovolcano near the Pacific coast of North America in the Cascade Range of Washington.

Boulder Glacier is the sixth largest on Mount Baker with an area of 1.3 mi2 (3.4 km2) (Post et al. 1971). It flows from the summit crater between Grant Peak (10,781 feet / 3,286 m) and Sherman Peak (10,140 feet / 3,091 m) to about 5,000 feet (1,524 m).

It is noteworthy for retreating 1,480 feet (450 m) between 1987 and 2005 leaving newly exposed rock and soil behind.