Author
United States. Bureau of Land Management
81
Geological Survey (U.S.)
80
United States. Bureau of Land Management. Wyoming State Office
79
National Operations Center (U.S.)
71
National Operations Center (U.S.),
24
United States. Bureau of Land Management,
24
United States. Bureau of Land Management. Wyoming State Office,
24
Geological Survey (U.S.),
23
National Science and Technology Center (U.S.)
9
United States. Bureau of Land Management. Idaho State Office
1