If copper isn’t Arizona’s king, it still looks to be a royal growth industry. Major new mines are in various stages of development or environmental haggling, all intended to exploit the metal ...

One of the greatest-producing mines in Arizona is Morenci, which produced 514 million pounds of copper — more than a third of the state total — in 2010. Other large mining operations are Ray ...

The mine has produced more than 43 billion pounds of copper since converting from underground to pit mining in 1937 and is estimated to hold at least 13 billion more — enough to operate through ...

The mine routinely produces between 800 million and 1 billion pounds of copper and is expected to be in operation until 2052.Its largest US based operation is its 72 percent owned Morenci mine in ...

Freeport-McMoRan Copper & Gold is planning to hire hundreds of workers as it increases production and restarts projects in Arizona. Freeport opens up 650 jobs at mines in Morenci, Safford Skip to ...

After 154 years of digging at Morenci, all the easily recoverable copper has been mined. Left behind are towering piles of waste rock that hold nearly ten-million tons of the metal seen as ...

Copper demand is rising in the U.S. and is set to double in the next 10 years. Mining executives say more mines need to open in order to meet the demand.

MORENCI, Ariz. — The night crew returned to the motel parking lot just after 7 a.m. and assembled the booze and the ashtrays on a wooden picnic table. Some of the traveling mine maintenance ...