Rio Tinto Kennecott is loaning $5 million to Milford Mining Company to support the resumption of the mine's operations and ...

The Clifton-Morenci mining district in eastern Arizona is sometimes referred to as the Copper Mountain mining district. But while known mainly for copper deposits, it also produced uncommon minerals.

Early mining operations in the Hualapai Mining district included the Copper World Mine, comprised of country rock including mica, gneiss, schist and granite.

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