Mineral resources of the proposed additions to the Scapegoat Wilderness, Powell and Lewis and Clark Counties, Montana / by Robert L. Earhart, D.L. Peterson, D.J. Grimes, R.W. Leinz, and L.Y. Marks ; with a section on geophysical surveys by Donald L. Peterson.
Publication Info.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1977.
Washington : United States Government Printing Office