Mineral resources of the Rock River Canyon Wilderness study area, Alger County, Michigan /
Whitlow, Jesse W.
Geraci, Philip J.
Mory, Peter C.
King, Elizabeth R.
Geological Survey (U.S.)
Washington [D.C.] : U.S. G.P.O.,
1983.
Includes bibliographical references (p. 42-43).
Mines and mineral resources