The underground mine in Meagher County is predicted to produce 14.5 million tons of copper-enriched rock mined from 1,888 acres over 13 years.

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.

Resolution Copper has stored some Colorado River water in irrigation districts, but that water is not located near the mine’s wellfield.

The Resolution Copper mine in Arizona plans to use a large amount of groundwater, potentially jeopardizing the planned Superstition Vistas development and its water supply.

If you work at the copper mine off of U.S. Route 191 in eastern Arizona, you likely know all about the "Morenci 500." ...

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 ...