Creator
- United States. Department of Housing and Urban Development15
- Geological Survey (U.S.) Minerals Information Team9
- Godt, Jonathan W.2
- Geological Survey (U.S.)1
- Global Resource Information Database1
- National Atlas of the United States1
- Rukstales, Kenneth S. (compiler)1
- United Nations. Office for Disaster Risk Reduction1
- United States. Minerals Management Service1