Author
Colorado Geological Survey
19
Geological Survey (U.S.)
10
Nezperce National Forest (Agency : U.S.)
5
Colorado. Division of Parks and Outdoor Recreation
3
Colorado. Tourism Office
3
U.S. Fish and Wildlife Service
3
Coe, J. A. 1960-
2
Colorado Tourism Board
2
Colorado. Department of Public Relations
2
Colorado. Division of Wildlife
2
Kreutzer, Lee
2
Maurrasse, Florentin J-M. R.
2
Sen, Gautam, 1951-
2
United States. National Park Service
2
United States. National Park Service. Intermountain Region
2
American Association of Petroleum Geologists. Eastern Section. Meeting
1
Anderson, Paul B. 1949-
1
Anstey, Mary Therese
1
Association of Engineering Geologists
1
Bauer, R. L.
1
Baum, Rex L.
1
Bennett, Virginia
1
Birkeland, Peter W.
1
Bitterroot National Forest (Agency : U.S.)
1
Blair, Rob, 1943-
1
Blodgett, Robert B.
1
Bon, Roger L.
1
Burton, William C. 1952-
1
Carney, Stephanie M.
1
Central Energy Resources Team (Geological Survey)
1
Child Welfare Information Gateway (U.S.)
1
Chronic, Halka
1
Chronic, John
1
Clift, P. D.
1
Colorado Historical Society
1
Colorado Historical Society. Office of Archaeology and Historic Preservation
1
Colorado Scenic and Historic Byways Commission
1
Colorado. Department of Agriculture. Division of Markets
1
Colorado. Division of Minerals and Geology
1
Danver, Steven Laurence,
1
Draut, Amy E.
1
Dubiel, Russell F.
1
Dyman, T. S.
1
Enomoto, Catherine B.
1
Erslev, Eric A.
1
Ethridge, Frank G.
1
Fleming, Robert W.
1
Flores, Romeo M.
1
Friends of the Pleistocene. Pacific Cell. Field Trip
1
Frost, Bryce Ronald, 1947-
1
more ...