Detailed geologic map of the recently active copper mines; Houghton and Keweenaw Counties, Michigan

Open-File Report 50-4
By: , and 

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Abstract

Publication type Report
Publication Subtype USGS Numbered Series
Title Detailed geologic map of the recently active copper mines; Houghton and Keweenaw Counties, Michigan
Series title Open-File Report
Series number 50-4
DOI 10.3133/ofr504
Edition -
Year Published 1949
Language ENGLISH
Description 24 maps
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