Lyman Glacier (Mount Adams)

Lyman Glacier is located on the north slopes of Mount Adams a stratovolcano in Gifford Pinchot National Forest in the U.S. state of Washington.^[3] The glacier is also within the Yakama Indian Reservation and descends from near the summit of Mount Adams at approximately 11,400 ft (3,500 m) to a terminus near 7,800 ft (2,400 m). Below 9,000 ft (2,700 m) the glacier splits into three distinct lobes.^[3] Lyman Glacier has been in a general state of retreat for over 100 years and lost 34 percent of its surface area between 1904 and 2006.^[2]

Lyman Glacier
Lyman Glacier cascading down from the summit of Mount Adams
Lyman Glacier Show map of Washington (state) Lyman Glacier Show map of the United States
Type	Mountain glacier
Location	Mount Adams, Yakima County, Washington, USA
Coordinates	46°12′58″N 121°29′03″W[1]
Area	1.62 km2 (0.63 sq mi) in 2006[2]
Length	1.4 mi (2.3 km)
Terminus	Talus
Status	Retreating

Lyman Glacier was named after William Denison Lyman by Claude Ewing Rusk because Lyman was one of the first to describe some of Mount Adams' features and history.^[4]

See also

• List of glaciers in the United States

References

1. "Lyman Glacier". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2012-11-11.
2. Sitts, Danielle; Andrew G. Fountain; Matthew J. Hoffman (2010). "Twentieth Century Glacier Change on Mount Adams, Washington, USA" (pdf). Northwest Science. 84 (4). Northwest Scientific Association: 378–385. doi:10.3955/046.084.0407. Retrieved 2012-11-11.
3. Mount Adams East, WA (Map). TopoQwest (United States Geological Survey Maps). Retrieved 2012-11-11.
4. Rusk, Claude Ewing (1978) [1924]. Tales of a Western Mountaineer (1st ed.). Seattle, Washington: The Mountaineers. ISBN 0-916890-62-7. LCCN 78054427. OCLC 4667368. OL 11004497M. Retrieved March 29, 2016.