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Blue Glacier

Blue Glacier is a large glacier located to the north of Mount Olympus in the Olympic Mountains of Washington. The glacier covers an area of 1.7 sq mi (4.4 km2) and contains 580,000,000 cu ft (16,000,000 m3) of ice and snow in spite of its low terminus elevation. The glacier length has decreased from about 3.4 mi (5.5 km) in 1800 to 2.7 mi (4.3 km) in the year 2000. Just in the period from 1995 and 2006, Blue Glacier retreated 325 ft (99 m). Blue Glacier is also thinning as it retreats and between 1987 and 2009 the glacier lost 178 ft (54 m) of its depth near its terminus and between 32 and 48 ft in the uppermost sections of the glacier known as the accumulation zone.

Description
Starting at an elevation of near Mount Olympus's three summits, the Blue Glacier begins as a snow/ice field separated by arêtes. As the glacier flows north, it cascades down a steep slope and thus, the smooth ice turns into a chaotic icefall, replete with seracs and crevasses. After the ice passes the icefall, the glacier ends up in a valley and takes a left turn to the west. Nevertheless, at least one snow event occurred in all twelve months during the six years the station was operated. ==Hydrology==
Hydrology
Due to orographic lift and the glacier's proximity to the Pacific Ocean, more precipitation falls on the Blue Glacier than any other glacier in the lower 48 United States. About of precipitation falls on the upper reaches of Mount Olympus and Blue Glacier each year. During winter, most of the precipitation on Blue Glacier consists of snow. In addition, a significant amount of rain falls on the Blue Glacier as well, especially during spring and summer. The Hoh River eventually discharges in the Pacific Ocean after flowing down through temperate rain forest in Olympic National Park. ==See also==
Source: Wikipedia ↗
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