Author/Creator
- United States. Bureau of Land Management✖[remove]577
- United States328
- National Science and Technology Center (U.S.)169
- Geological Survey (U.S.)116
- National Applied Resource Sciences Center (U.S.)109
- United States. Bureau of Land Management. Montana State Office82
- United States. Bureau of Land Management. Colorado State Office35
- United States. Bureau of Land Management. Oregon State Office33
- United States. Bureau of Land Management. Wyoming State Office29
- United States. Bureau of Land Management. Arizona State Office24
- United States. Bureau of Land Management. New Mexico State Office22
- United States. Forest Service21
- Montana Bureau of Mines and Geology19
- Berryhill, Henry L., Jr. (Henry Lee), 1921-201318
- Colton, Roger B. (Roger Burnham), 1924-16
- Trippet, Anita R.15
- United States. Bureau of Land Management. Nevada State Office15
- University of Texas at Austin. Bureau of Economic Geology15
- United States. Bureau of Land Management. California State Office14
- United States. Bureau of Land Management. Idaho State Office14