Mineral resources of the Cloud Peak Primitive Area, Wyoming : an evaluation of the mineral potential of the area / by Thor H. Kiilsgaard and Gorge E. Ericksen, and by Lowell L. Patten, and Carl L. Bieniewski.
Publication Info.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1972.
Washington : United States Government Printing Office