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.

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 ...

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 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 ...

Copper retains much of the luster that lent Arizona the unofficial nickname "Copper State," and is king in rural Greenlee County.

Tribal groups are fighting an Arizona project whose backers say increasing the supply of copper, crucial to batteries, would reduce fossil-fuel use.

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.

Southern Copper Corp. is growing more optimistic about being able to build a fiercely contested copper mine in the coastal mountains of Peru as sociopolitical tensions ease.

The U.S. is producing a lot less copper this year than it could if the copper mines could keep their miners from drifting off to greener pastures: higher-pay West coast shipyards and factories.

Sheriff's deputies arrested men who they say were in the process of stealing copper from the Kennecott mine, and later reported finding stolen copper at a nearby recycling business.

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 ...