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January 30, 2014

North Alsek Glacier Retreat-Lake Formation, Alaska

North Alsek Glacier comparison in 1984 and 2015 Landsat images. ¬†Illustrating the formation of proglacial lake due to glacier retreat. Red arrow is the 1984 terminus and yellow arrow 2013 terminus. ¬†Point A is and island.¬† The Alsek Glacier is a large glacier draining into Alsek Lake and the Alsek River. The first glacier upriver of Alsek Glacier flowing from the east and ending on the Alsek River valley floor …

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