| Layer Name | Description |
| Geographic Name | Geographic Names Information System |
| City | Cities |
| State | State Boundaries |
| County | County Boundaries |
| 250k Quad | 1° x 2° (1:250,000) USGS Quadrangle Boundaries |
| 100k Quad | 30' x 60' (1:100,000) USGS Quadrangle Boundaries |
| 24k Quad | 7.5' (1:24,000) USGS Quadrangle Boundaries |
| Road | Major Roads |
| General Topo Map | Generalized 1:250,000-scale Digital Raster Graphic |
| 250K Topo Map | 1:250,000-scale Digital Raster Graphic |
| 100K Topo Map | 1:100,000-scale Digital Raster Graphic |
| 24K Topo Map | 1:24,000-scale Digital Raster Graphic |