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Mining methods and costs at the Piokee mining unit and the Piokee experimental mining project, the Eagle-Picher Co. (Tri-State Mines), Ottawa County, Okla.

Published Year

• 1950-1959 (1) *

Subject

• Lead mines and mining--Oklahoma--Ottawa County (1)
• Zinc mines and mining--Oklahoma--Ottawa County (1)

Author

• Elizondo, J. B. (1) *

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