Geologic map of the Keweenaw Peninsula and adjacent area Michigan / by William Cannon and Suzanne W. Nicholson.
Contributors: Nicholson, S.W.
Series: U.S. Geological Survey.  Map I-2696
Publisher: Dept. of the Interior
Place of publication: Washington
Language: eng
Subjects: Geology - Michigan - Keweenaw
Notes: 11