福利导在线观看鈥檚 GIS Center makes available US Geological Survey 7.5鈥� topographic sheets in digital format as a courtesy to the community. Each sheet is a scanned copy of a USGS topographic sheet and includes a reference file that allows it to be used by software that supports the USGS Digital Raster Graphics (DRG) standard. Coverage will be complete for Virginia, West Virginia, Maryland, and the District of Columbia.
Some DRGs from the states surrounding the ones listed above will also be made available. These DRGs are generally just the ones that fall partially within one of the states above but are classified by the USGS as being within another state. States with this partial coverage are:
Disclaimer: The 福利导在线观看 GIS Center make these files available 鈥渁s is.鈥� Neither the department nor the university assume any legal obligation as to the accuracy of the maps. Please send any comments to Andrew Foy.