Mineral resources of the Sturgeon River wilderness study area, Houghton and Baraga Counties, Michigan : an evaluation of the mineral potential of the area /

by Cannon, William F., King, Elizabeth R., 1924-2010, Hill, James J., Mory, Peter C.
Published 1980

Mineral resources of the Rainbow Lake Wilderness Area and Flynn Lake Wilderness Study Area, Bayfield County, Wisconsin /

by Cannon, William F., Cameron, Cornelia Clermont, 1911-, Grosz, Andrew E., Dunn, Maynard L., Gazdik, Gertrude C., Hill, James J.
Published 1981