Digital raster graphic (DRG) are digitized maps from USGS topographic maps. Because DRGs are digital, accurate and have been Geocoded, they are often used in GIS maps. The map above shows the location of Corning Community College in NY.
Sunday, April 24, 2011
Digital Raster Graphic Maps
Digital raster graphic (DRG) are digitized maps from USGS topographic maps. Because DRGs are digital, accurate and have been Geocoded, they are often used in GIS maps. The map above shows the location of Corning Community College in NY.
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