Author
United States. Bureau of Land Management
211
Geological Survey (U.S.)
191
National Operations Center (U.S.)
178
Geological Survey (U.S.),
59
National Operations Center (U.S.),
59
United States. Bureau of Land Management,
59
United States. Bureau of Land Management. Montana State Office
56
United States. Bureau of Land Management. Wyoming State Office
42
United States. Bureau of Land Management. Colorado State Office
39
United States. Bureau of Land Management. New Mexico State Office
38
United States. Bureau of Land Management. Oregon State Office
26
National Science and Technology Center (U.S.)
25
United States. Bureau of Land Management. Montana State Office,
19
United States. Bureau of Land Management. Oregon State Office,
15
United States. Bureau of Land Management. New Mexico State Office,
10
United States. Bureau of Land Management. Wyoming State Office,
10
United States. Bureau of Land Management. Colorado State Office,
4
United States. Bureau of Land Management. Idaho State Office
2
National Applied Resource Sciences Center (U.S.)
1
United States. Bureau of Land Management. Burns District
1
United States. Bureau of Land Management. Idaho State Office,
1
United States. Bureau of Land Management. Utah State Office
1
United States. Central Intelligence Agency
1