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

Mineral resources of the Beartooth primitive area and vicinity, Carbon, Park, Stillwater, and Sweet Grass Counties, Montana, and Park County, Wyoming /

Washington : U.S. Govt. Print. Off., 1979