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Investigation of Twin Buttes copper mines, Pima County, Ariz.

Copper Giant deposits, Pima County, Ariz.

Published Year

• 1950-1959 (2) *

Subject

• Copper mines and mining--Arizona--Pima County (2)
• Copper ores--Arizona--Pima County (1)

Author

• Romslo, T. M. (2) *
• Cummings, Joseph B. (1)
• Robinson, C. S. (1)

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