Author
United States. Bureau of Land Management
369
Geological Survey (U.S.)
330
National Operations Center (U.S.)
243
National Science and Technology Center (U.S.)
121
United States. Bureau of Land Management. Montana State Office
74
United States. Bureau of Land Management. New Mexico State Office
66
United States. Bureau of Land Management. Colorado State Office
58
United States. Bureau of Land Management. Wyoming State Office
52
United States. Bureau of Land Management,
38
National Operations Center (U.S.),
37
United States. Bureau of Land Management. Nevada State Office
31
United States. Bureau of Land Management. California State Office
26
United States. Bureau of Land Management. Arizona State Office
22
Geological Survey (U.S.),
18
United States. Bureau of Land Management. Idaho State Office
17
United States. Bureau of Land Management. Utah State Office
13
United States. Bureau of Land Management. Oregon State Office
12
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. Montana State Office,
5
United States. Bureau of Land Management. Idaho State Office,
4
United States. Bureau of Land Management. New Mexico 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. 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