Geochemical reconnaissance of the Cortez-Buckhorn area, southern Cortez Mountains, Nevada /

by Wells, John David, 1926-
Washington, D.C. : U.S. Government Printing Office, 1971

Geology and mineral resources of the North Absaroka Wilderness and vicinity, Park County, Wyoming : an evaluation of the mineral potential of the area /

by Nelson, Willis H. (Willis Howard), 1920-2010, Prostka, Harold J., Williams, Frank E.
Washington : United States Government Printing Office, 1980