Author
Geological Survey (U.S.)
64
United States. Bureau of Land Management
41
United States. Bureau of Land Management,
37
National Operations Center (U.S.),
36
National Science and Technology Center (U.S.)
19
Geological Survey (U.S.),
17
National Operations Center (U.S.)
17
United States. Bureau of Land Management. New Mexico State Office
11
United States. Defense Mapping Agency. Hydrographic/Topographic Center
11
United States. Bureau of Land Management. Arizona State Office,
7
United States. Bureau of Land Management. Utah State Office,
7
National Applied Resource Sciences Center (U.S.)
6
United States. Bureau of Land Management. California Desert District
6
United States. Bureau of Land Management. California State Office
6
United States. Bureau of Land Management. Colorado State Office
6
United States. Bureau of Land Management. Montana State Office
6
United States. Bureau of Land Management. Wyoming State Office
6
United States. Bureau of Land Management. Montana State Office,
5
United States. Bureau of Land Management. Idaho State Office,
4
United States. Bureau of Land Management. Arizona State Office
3
United States. Bureau of Land Management. Oregon State Office
3
United States. Bureau of Land Management. Oregon State Office,
3
United States. Bureau of Land Management. California State Office,
2
United States. Bureau of Land Management. Nevada State Office
2
United States. Bureau of Land Management. Nevada State Office,
2
United States. Bureau of Land Management. New Mexico State Office,
2
United States. Bureau of Land Management. Wyoming State Office,
2
U.S. Atomic Energy Commission
1
U.S. Coast and Geodetic Survey
1
United States. Bureau of Land Management. Colorado State Office,
1
United States. Soil Conservation Service
1
Virginia. Division of Mineral Resources
1