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The Adams Glacier is a large mountain glacier situated on the northwest flank of Mount Adams, a 12,276 ft (3,742 m) stratovolcano in the U.S. state of Washington. It is the largest glacier on Mount Adams, flowing down from the summit icecap at over 12,000 ft (3,700 m) for over 2.5 mi (4 km) to a terminus near 7,000 ft (2,100 m).
Between 11,800 ft (3,600 m) and 9,200 ft (2,800 m), the glacier flows through a steep icefall which provides challenging climbing through a maze of seracs. The first ascent of the glacier was by Fred Beckey, Dave Lind, and Robert Mulhall in July 1945.
The lower portion of the glacier below 8,400 ft (2,560 m) spreads into a broad sheet, with five separate tongues of ice extending out to termini between large moraines.
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