Digital Raster Graphic or DRG, is a scanned and georectified USGS topoquad. Digital Raster Graphic is one of the three different digital map products of the USGS. Digital Raster Graphics are another form of topographic maps which are widely used today. The DRG map above is showing an area around a golf course with a lake and various surface features. The map is sjowing many different elevation changes to enhance the given surface features. This map gives the viewer a good idea of the given surface features of a specific area, and it is essentially the main interest of a DRG map.
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