Sunday, July 3, 2011

DRG Maps

Digital Raster Graphic maps are scanned images from the United States Geological Survey (USGS) topographic map.  This map is georeferenced, meaning that their features are tied into a coordinate system, a datum, and a map projection.  The raster image has border information included.  This map shows an image of the land and water areas around Michigan State University.   

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