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Federal
1966_Glacier margins derived from USGS 1966 topographic maps for the named glaciers of Glacier National Park, MT and environs
Department of the Interior —
The 1966 polygons included in this data release represent the main body portion of the 37 named glaciers of Glacier National Park (GNP) and 2 named glaciers on the... -
Federal
1998_Glacier margins derived from 1998 aerial imagery for the named glaciers of Glacier National Park, MT and environs
Department of the Interior —
These polygon features represent digitization of the glacier margins for the 37 named glaciers of Glacier National Park (GNP) and the 2 glaciers along the border of...