A major mining operation in Eastern Arizona plans to cut its work force in half in another round of layoffs since the bottom fell out of the copper market. Freeport-McMoRan Copper & Gold announced ...

This is the second in a two-part series on the Clifton-Morenci District. Read the first part at online at tinyurl.com/morenci Although Phelps Dodge increased ...

Freeport FCX has wrapped up the sale of a 13% interest in its Morenci unincorporated joint venture to its Japan-based partner, Sumitomo Metal Mining Co., Ltd. (“SMM”) for $1 billion in cash.

Phelps Dodge, the mining company that controlled Morenci, ended segregation in 1969. Then it found copper ore underneath the town. The mine stretched and sprawled, reaching homes and storefronts ...

(Bloomberg) -- Carved into a mountain range in Arizona’s Sonoran Desert, where temperatures often reach 118F (48C), a vast mining complex more than a century old is on the front lines of a race ...

It's hard to imagine the scale of the Morenci Mine in the southeast portion of the state, but you can get really close to it. Literally. Take a drive along U.S. Highway 191, and one of the world's ...

McMoRan's mine in Morenci. Unlike most U.S. roads, driving on roads within the mine is required to be on the left. The reason ...

55% of the Cerro Verde mine in Peru, and 72% of Morenci in Arizona. In 2024, it sold around 1.2 million metric tons of copper (its share), making it the one of the world’s largest copper miners ...

Morenci is the largest copper mine in North America — about the size of Brooklyn. Between processing facilities and warehouses, lizards and organ-pipe cacti bask in blazing sunlight. The waste ...