History of Arizona's Clifton-Morenci Mining District: The era of mining by open pit

History of Arizona's Clifton-Morenci Mining District: The era of mining by open pit PDF Author: Ted Cogut
Publisher:
ISBN: 9780967534718
Category : Clifton (Ariz.)
Languages : en
Pages : 274

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Book Description
World War II would bring on a great expansion in both the output and method of copper mining with a shift from underground tunnels to an open pit mine which became the largest copper producer in North America. In 1996, that Morenci Open Pit Mine would set the world-record for mine production.