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Mining and milling methods and costs, Tri-State Zinc, Inc., Jo Daviess County, Ill.

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) *

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