Copper district [of the upper peninsula of Michigan]
By: by Raphael Pumpelly.  Assistants: A. R. Marvine, M. E., L. G. Emerson, C. E., and S. B. Ladd.
Series: Michigan. Geological Survey.  [Reports]; vol. I, pt. II: Upper peninsula, 1869-1873
Publisher: J. Bien
Published: 1873
Place of publication: [New York
Language: eng
Number of pages: 143
Subjects: Copper ores -- Michigan.