Author
United States. Forest Service,
207
United States. National Park Service,
29
United States. Forest Service
17
United States. Bureau of Indian Affairs. Phoenix Area Office. Branch of Roads
14
United States. Bureau of Land Management. California State Office
11
United States. Bureau of Land Management,
9
Geological Survey (U.S.)
8
United States. Bureau of Land Management. California State Office,
6
United States. Bureau of Land Management. Roseburg District Office,
6
United States. Forest Service. Southern Region,
5
American Association of Petroleum Geologists
4
Colorado. Department of Highways. Planning and Research Division
4
United States. Bureau of Indian Affairs. Eastern Nevada Agency
4
United States. Bureau of Indian Affairs. Southern Paiute Field Office
4
United States. Bureau of Indian Affairs. Albuquerque Area Office. Branch of Roads
3
United States. Forest Service. Pacific Northwest Region,
3
United States. National Park Service
3
Colorado. Division of Transportation Development
2
Feray, Dan E.
2
H.M. Gousha Company
2
Higginbotham, Van K.
2
National Geographic Maps (Firm)
2
New Mexico Geological Society
2
Oetking, Philip
2
Renfro, H. B.
2
Scott, Glenn R., 1918-2012
2
United States. Bureau of Indian Affairs. Sacramento Area Office. Branch of Roads
2
United States. Bureau of Indian Affairs. Truxton Canon Agency
2
United States. Bureau of Land Management. Barstow Field Office,
2
United States. Bureau of Land Management. Colorado State Office. GIS Unit
2
United States. Bureau of Land Management. Coos Bay District,
2
United States. Bureau of Land Management. Craig District
2
United States. Bureau of Land Management. Little Snake Resource Area
2
United States. Central Intelligence Agency
2
United States. Forest Service. Pacific Northwest Region
2
Utah State Parks,
2
Azevedo, Sandra H.
1
Baltz, Diana H.,
1
Bennison, A. P.
1
Carroll, Allen
1
Case Thompson, Inc.,
1
Christiansen, R. D.,
1
Colorado. Department of Highways
1
Continental Oil Company
1
Dallas Geological Society
1
Death Valley National Park (Agency : U.S.),
1
Dunkin Blue Print & Supply Company
1
Glesner, Kathryn E.
1
Grand Teton National Park (Agency : U.S.)
1
Idaho. Department of Fish and Game
1
more ...