Investigation of Keystone and st. George Copper-Zinc Deposits Cochise County, Ariz.
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Investigation of Keystone and st. George Copper-Zinc Deposits Cochise County, Ariz. by United States. Bureau of Mines.

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Published by s.n in S.l .
Written in English


Book details:

Edition Notes

1

SeriesReport of investigations (United States. Bureau of Mines) -- 4504
ContributionsRomslo, T.
ID Numbers
Open LibraryOL21748475M

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Discovery of the ore deposits in Michigan in the early 's began a new era for copper production in the United States. Extensive ore bodies were found in Montana and Arizona during the years to , and smelter production from domestic ores increased from MT ( tons) in to 27, MT (30, tons) in This banner text can have markup.. web; books; video; audio; software; images; Toggle navigation.