Sperry Glacier Glacier National Park, MT 1913 W. C. Alden photo, courtesy GNP Archives[removed]Lisa McKeon photo, USGS

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Date: 2012-11-15 18:42:10		Sperry Glacier Glacier National Park, MT 1913 W. C. Alden photo, courtesy GNP Archives[removed]Lisa McKeon photo, USGS Add to Reading List Source URL: nrmsc.usgs.gov Download Document from Source Website File Size: 866,46 KB Share Document on Facebook