Copper and nickel resources in the Duluth Complex, Northeastern Minnesota
Series: Information Circular (Minnesota Geological Survey) -- 10
Publisher: University of Minnesota
Published: 1974
Place of publication: St. Paul, MN
Language: eng
Number of pages: 24
Subjects: Copper mines and mining -- Minnesota -- Saint Louis County.; Nickel mines and mining -- Minnesota -- Saint Louis County.
Notes: Bibliogr.

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