Author
Geological Survey (U.S.)
4
Geological Survey (U.S.),
3
Cannon, Susan H.
2
Anna, Lawrence O.,
1
Colorado Geological Survey
1
Eppinger, R. G.,
1
Gartner, Joseph E.
1
Giles, Stuart A.,
1
Hoogestraat, Galen K.,
1
Johnson, Ronald C. 1950-
1
Klein, T. L.,
1
Mercier, Tracey J.
1
Michael, J. A.
1
Powers, Philip S.
1
Savage, William Z.
1
Stevens, Michael R.,
1
United States. Forest Service,
1
Varnes, David J. 1919-
1