The Crescent Glacier is a small glacier

Glacier

A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

 located southeast of Mount Adams

Mount Adams (Washington)

Mount Adams is a potentially activestratovolcano in the Cascade Range and the second-highest mountain in the U.S. state of Washington.Adams is a member of the Cascade Volcanic Arc, and is one of the arc's largest volcanoes,...

 in Washington. A small subpeak of Mount Adams, named South Butte, rises nearby. In addition, the Crescent Glacier is located quite close to another small glacier, the Gotchen Glacier, located just to the east. The Crescent Glacier lies in a small south-facing cirque

Cirque

Cirque may refer to:* Cirque, a geological formation* Makhtesh, an erosional landform found in the Negev desert of Israel and Sinai of Egypt*Cirque , an album by Biosphere* Cirque Corporation, a company that makes touchpads...

 with a steep headwall. The glacier ranges in elevation from 8400 feet (2,560.3 m) at the foot of the steep cliff to 7900 feet (2,407.9 m) at the moraine

Moraine

A moraine is any glacially formed accumulation of unconsolidated glacial debris which can occur in currently glaciated and formerly glaciated regions, such as those areas acted upon by a past glacial maximum. This debris may have been plucked off a valley floor as a glacier advanced or it may have...

. One arm of the glacier extends south down to 7600 feet (2,316.5 m) and the other branch connects the glacier to a snowfield to the north at about 8800 ft (2,682.2 m).