Geologic
- National Geologic Map Database
- Links to State Geological Surveys
- USGS Publications Warehouse
- National Geologic Map Database Image Library
- U.S. State Geologic Maps
- State Geologic Cartobibliography, Alabama - Montana
- State Geologic Cartobibliography, Nevada - Wyoming
- State Geologic Maps (USGS)
- Tennessee Division of Geology Catalogue of Publications
- Tennessee Landforms
- Tennessee Soil Surveys Available at the Ag Vet Med Library
- Geologic Atlas of the United States at Texas A&M university