Found 2 datasets matching "1966 USGS aerial imagery".
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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 U.S. Forest Service’s Flathead...
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The 1966 USGS 7.5 minute quadrangle map and aerial imagery available for the years of 1991, 2004, 2005, 2006, 2008, and 2010 was used to trace the shoreline of Lake Sharpe near Lower Brule, South...
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