A DEM is a digital file consisting of terrain elevations for ground positions at regularly spaced intervals.
Distribution & Format
The GIS Service Bureau distributes DEMs in native format only. To decrease file size and transfer time, the native DEM files have been individually compressed into a Zip format. The files can be decompressed with any software that handles Zip files like Unzip, PKUnzip, or WinZip to name a few.
DEMs for the State of Ohio can be downloaded for free.
DEMs are also available from the United States Geological Sruvey (USGS).
Click here to use our web map to select datasets for download. Just click on the USGS tab for the DEM links.
Click here to download them from a table sorted by quadrangle name.