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.

Extensive exploratory drilling further revealed the mining potential of the low-grade sulfide Clay ore body at Morenci which had been explored by the Detroit Copper Co. and the Arizona Copper Co ...

“It’s very representative,” said Arizona State University history ... Phelps Dodge, the mining company that controlled Morenci, ended segregation in 1969. Then it found copper ore underneath ...

from Morenci in Arizona. The town was built to house the mine’s workers and their families in the late 1800s, back when mules hauled crates of ore up the mine’s dusty slopes. And like much of ...

Estevan Mesa is a mine worker who has taken full advantage of the Morenci housing program. After a brief stint playing baseball at Eastern Arizona College in Safford, he went to work driving ore ...

The 'golden oil' has been produced for 153 years, totalling 520,000 tonnes, and our discoveries continue. The Morenci Copper ...

The Morenci mine looked like the Sarlacc monster ... U.S. Treasurer Romana Acosta Bañuelos — were born in Arizona mining towns or traced their lineage there. I share those roots.

(Sam Ribakoff/Courthouse News) Deep in rural eastern Arizona, Clifton lies where the Sonoran Desert starts to climb into the White Mountains, ocotillo cactus giving way to ponderosa pines. Morenci, an ...

Freeport-McMoRan (NYSE:FCX) is selling a 13 percent ownership interest in its Morenci Mine to Sumitomo Metal Mining Co., Ltd. (SMM) for $1.0 billion in cash. Morenci is an open-pit, copper mine ...

U.S. copper production, currently 1.2 million metric tons a year, has been dropping because the nation’s biggest mine, the Morenci in Arizona, is declining and may be exhausted in 20 years.