This is a good example of a DRG map. DRG stands for Digital Raster Graphic. These are scanned images of the U.S. Geological Survey topographic maps. This example seems to be an image of a town in Texas that is separated by the Colorado River.
Friday, July 19, 2013
DRG Map
This is a good example of a DRG map. DRG stands for Digital Raster Graphic. These are scanned images of the U.S. Geological Survey topographic maps. This example seems to be an image of a town in Texas that is separated by the Colorado River.
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