- National Atlas of the United States34
- Geological Survey (U.S.)11
- National Geophysical Data Center10
- Geological Survey (U.S.) Minerals Information Team9
- EROS Data Center4
- Bush, Charles A.2
- Godt, Jonathan W.2
- Reed, John Calvin, Jr. 1930-2
- United States. Forest Service2
- Wade, Tim2
- Blackburn, Laura1
- Eastern Energy Resource Surveys Team (Geological Survey)1
- Lannoo, Michael J.1
- Nanjappa, Priya1
- Ritters, Kurt1
- Rukstales, Kenneth S. (compiler)1
- Tobin, B. D.1
- USGS National Center for EROS1
- United States. Agricultural Research Service1
- United States. Environmental Protection Agency1
