Free GIS data downloads from the WeoGeo Market
All downloadable GIS layers are in ArcView shapefile format compressed into a zip file that can be opened in WinZip or PkUnzip. The layers are projected in Alabama West State Plane Coordinate System (units in feet) NAD83 FIPS Zone 102. Shapefiles may be viewed in ArcView, Geomedia Viewer, and AutoCAD Map.
1:100,000-scale Digital Line Graph for Alabama rom USGS
1:250,000-scale Digital Elevation Models for Alabama
Data products include DEM, DRG, DOQQ, and soils data. All GIS data sets are projected in the following format: Projection: UTMSpheroid: GRS 80Datum: Nad 83Units: Meters