Digital Elevation Models (DEMs) are produced by the U.S. Geological Survey in a number of different resolutions. While these files are available from the USGS, we hope that also having them here will help users in having one site to go to for many of the common spatial data sets that encompass Virginia.
A limited number of county DEMs are now being made available. Each county DEM is composed of all the 1:24,000 DEMs that fall within the county. These DEMs are merged into a single DEM and have been clipped to the county boundary using a 1:24,000 county coverage of Virginia.