http://lter.kbs.msu.edu/data/gis-data/
Description: DRG stands for Digital Raster Graphic. A DRG is a scanned image from the a United States Geological Survey made for computer usage. This is a type of topographic map so it shows relief using contour lines. This computer map shows us a surveyed area generated on a computer and shows both aspects of the landscape and the relief.
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