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2017. GLIMS. This polygon shapefile contains glacier outlines for the Alaska region. These data also include an ancillary CSV file containing all hypsometric da... GLIMS.
2011. World Data Center for Paleoclimatology and NOAA Paleoclimatology Program (U.S.). This line shapefile represents the extent of glaciers during the late Wisconsin glaciation (also known as the Last Glacial Maximum, about 20,000 ye... World Data Center for Paleoclimatology.