A Digital Raster Graphic (DRG) is a scanned image of a USGS quadrangle map. The image inside the map neatline is georeferenced to the surface of the Earth.
There are 793 1:24,000 Scale DRGs covering the State of Ohio.
Distribution & Format
DRGs available free of charge through the GIS Service Bureau in GeoTIFF format.
DRGs for the State of Ohio can be downloaded for free.
DRGs can be downloaded from the following address.
Click here to use our web map to select datasets for download. Just click on the USGS tab for the DRG links.
DRGs are also available from the United States Geological Survey (USGS)
Click here to download them from a table sorted by quadrangle name.