The horizontal positional accuracy and datum of the DRG matches the accuracy and datum of the source map. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Universal Transverse Mercator projection.
DIGITAL RASTER GRAPHIC DRG SERIES
What is a Digital Raster Graphic (DRG)?Ī digital raster graphic (DRG) is a scanned image of a USGS standard series topographic map, including all map collar information. Nebraska Maps and More, the SNR store, is pleased to serve as the outlet for Digital Raster Graphics, a revolutionary new map series recently completed for Nebraska. Copies of all Nebraska topographic maps are stocked and sold to the public.
ESIC serves as a clearinghouse for topographic, vegetation, soils and geological maps, historical and contemporary aerial photography and satellite imagery, soil surveys, National Wetlands Inventory data and many other types of digital cartographic data. The DRG can be used to collect, review, and revise other digital data, especially digital line graphs (DLG). The image inside the map neatline is georeferenced to the surface of the Earth. The scanned image includes all map collar information. Geological Survey (USGS) topographic map. Geological Survey (USGS) designating the School of Natural Resources (SNR) as the USGS Earth Science Information Center (ESIC) for the state of Nebraska. A digital raster graphic (DRG) is a scanned image of a U.S.
Since April, 1979,we have maintained a formal agreement with the U.S.
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