A Century of Retreat at Portage Glacier, South-Central Alaska

Fact Sheet 2006-3141

U.S. GEOLOGICAL SURVEY

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Photo Plate. Series of photographs of the terminus of Portage Glacier. 1914 and 1939 taken from Turnagain Shoulder NW to SE view; 1972 and 1984 oblique aerial view NW to SE; 1999 and 2006 oblique aerial view NE to SW toward Portage Glacier. Photo credits: 1914, Strough http://usasearch.gov/search?v%3Aproject=firstgov-noaa-images&query=strough; 1939, Barnes 1943, Plate 17B; 1972, USGS photograph; 1984, Aeromap U.S.; 1999 and 2006, USGS photographs.

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