Author
Geological Survey (U.S.)
105 results
United States. Bureau of Land Management
21 results
Gray, Floyd
15 results
United States. Bureau of Mines
12 results
Peterson, Jocelyn A.
11 results
Welty, John W.
11 results
Drewes, Harald, 1927-2015
10 results
Wilson, Eldred Dewey, 1898-1965
9 results
Reynolds, Stephen J.
8 results
Richter, Donald H.
8 results
Simons, Frank S. (Frank Stanton), 1917-
8 results
Calder, Susan R.
7 results
Tosdal, Richard M.
7 results
United States. Bureau of Land Management. Safford District
7 results
Arizona State Bureau of Mines
6 results
Creasey, S. C. (Saville Cyrus), 1917-
6 results
Sherrod, David R.
6 results
University of Arizona. Bureau of Geology and Mineral Technology
6 results
Keith, Stanton B.
5 results
Moore, Richard T.
5 results
University of Arizona. Geological Survey Branch
5 results
DeWitt, Ed
4 results
Evans, James George, 1938-
4 results
Lane, Michael E.
4 results
Nowlan, G. A.
4 results
Schnabel, Lorraine
4 results
Williams, Frank E.
4 results
Arizona Geological Survey
3 results
Billingsley, George H.
3 results
Bliss, James D.
3 results
Conway, Clay M.
3 results
Cooper, John R. (John Roberts), 1907-
3 results
Cox, Dennis P.
3 results
Eppinger, R. G.
3 results
Force, Eric R.
3 results
Galbraith, Frederic William, 1903-
3 results
Gilluly, James, 1896-1980
3 results
Greene, Robert C.
3 results
Keith, Stanley B.
3 results
Light, Thomas D.
3 results
Ratté, James Clifford, 1925-
3 results
Smith, David B. (David Burl), 1948-
3 results
Spencer, Jon E.
3 results
United States. Forest Service. Southwestern Region
3 results
Bielski, Alan M.
2 results
Bush, Alfred Lerner, 1919-
2 results
Chaffee, Maurice A.
2 results
Conterminous United States Mineral Assessment Program
2 results
Davis, W. E. (Willard E.), 1905-
2 results
Eaton, Gordon P.
2 results
more…