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Palisade Glacier

Coordinates:37°06′00″N118°30′37″W/ 37.10000°N 118.51028°W/37.10000; -118.51028
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Palisade Glacier
Climbing the Palisade Glacier
Map showing the location of Palisade Glacier
Map showing the location of Palisade Glacier
Palisade Glacier
Location in California
Map showing the location of Palisade Glacier
Map showing the location of Palisade Glacier
Palisade Glacier
Palisade Glacier (the United States)
TypeMountain glacier
LocationPalisades,Inyo County, California,U.S.
Coordinates37°06′00″N118°30′37″W/ 37.10000°N 118.51028°W/37.10000; -118.51028[1]
Area.31 sq mi (0.80 km2)
Length.81 mi (1.30 km)

ThePalisade Glacieris aglacierlocated on the northeast side of thePalisadeswithin theJohn Muir Wildernessin the centralSierra Nevadaof California.[2]The glacier descends from the flanks of fourfourteeners,or mountain peaks over 14,000 ft (4,300 m) in elevation, includingNorth Palisade(14,242 ft (4,341 m)), the highest peak of the Palisades group and the third highest peak in the Sierra Nevada overall.[3]

Thecirquecontaining the Palisade Glacier has a history of thousands of years of glaciation. The modern glacier attained its last maximum extent during theLittle Ice Age,between 250 and 170 years ago (a period also known as the Matthes glaciation in the Sierra Nevada).[4][5]It currently[when?]has an area of.31 sq mi (0.80 km2) and the glacier is.81 mi (1.30 km) long and.50 mi (0.80 km) wide.[6]It is located between 13,400 and 12,000 ft (4,100 and 3,700 m) and moves at a rate of 20 ft (6.1 m) per year, although it is also retreating.[7]Palisade Glacier is one of the few glaciers in California that terminates in aproglacial lakedammed by its formermoraine,turquoise-colored from the glacial powder suspended in the water. TheBig Pine Lakesbelow the glacier are also the same color.[8]Another feature of the glacier is amoulin,[7]which was formed in a drought during 1977,[9]and abergschrund.[4]

The Palisade Glacier and its proglacial lake

See also in the United States

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References

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  1. ^"Palisade Glacier".Geographic Names Information System.United States Geological Survey,United States Department of the Interior.Retrieved2012-10-02.
  2. ^North Palisade, CA(Map). TopoQwest (United States Geological Survey Maps).Archivedfrom the original on 2013-05-17.Retrieved2012-10-02.
  3. ^"North Palisade, California".Peakbagger.com.Retrieved2012-10-02.
  4. ^abMary Hill (2006).Geology of the Sierra Nevada.University of California Press.ISBN978-0-520-23695-0.
  5. ^Bowerman, Nicole D.; Doulgas H. Clark (May 2011). "Holocene Glaciation in the Central Sierra Nevada, California".Quaternary Science Reviews.30(9–10): 1067.Bibcode:2011QSRv...30.1067B.doi:10.1016/j.quascirev.2010.10.014.
  6. ^James Gregory Moore (2000).Exploring the Highest Sierra.Stanford University Press.ISBN978-0-8047-3703-6.
  7. ^abIsaac Nadeau (2006).Glaciers.The Rosen Publishing Group.ISBN978-1-4042-3124-5.
  8. ^Allan A. Schoenherr (1995).A Natural History of California.University of Oregon Press.ISBN978-0-520-06922-0.
  9. ^Bill Guyton (2001).Glaciers of California: Modern Glaciers, Ice Age Glaciers, the Origin of the Death Valley, and a Glacier Tour in the Sierra Nevada.University of California Press.ISBN978-0-520-22683-8.