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Mining and milling methods and costs, Tri-State Zinc, Inc., Jo Daviess County, Ill.
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Published Year
1950-1959 (1)
Subject
Lead mines and mining--Illinois--Jo Daviess County (1)
Mines and mineral resources--Cost of operation (1) *
Mines and mineral resources--Illinois--Jo Daviess County--Management (1)
Zinc mines and mining--Illinois--Jo Daviess County (1)
Author
Cole, W. A. (1) *
