Author
United States. Bureau of Land Management
2
United States. National Park Service
2
Crovelli, Robert A.
1
Geological Survey (U.S.)
1
Nuccio, Vito F.
1
Peterson, George L.
1
Schmoker, J. W.
1
United States. Bureau of Land Management. Craig District
1
United States. Bureau of Land Management. San Luis Resource Area
1
United States. Minerals Management Service
1