The House approved the Critical Mineral Consistency Act in November, which would add copper to the U.S. Geological Survey ...

A planned copper mine could alter Tucson's natural skyline, but in the 'Copper State,' mining interests still hold sway.

With pits like Phoenix-based Freeport McMoran’s Morenci Mine in eastern ... told The Republic that copper mining is synonymous with southern Arizona. The mine, at least in its first planned ...

Clifton mayor Laura Dorrell and Robert Pollock speak about the Morenci Mine, its impact and the value of copper. New ASU graduates celebrate at the winter commencement in Tempe Watch The Republic ...

The North America Copper Mines segment operates open-pit copper mines in Morenci, Bagdad, Safford, Sierrita, Miami in Arizona and Chino, and Tyrone in New Mexico. The South America Mining segment ...

AZCentral | The Arizona Republic Thu, December 19, 2024 at 1:01 PM UTC Clifton mayor Laura Dorrell and Robert Pollock speak about the Morenci Mine, its impact and the value of copper.

Excelsior Mining has secured the final permit needed to restart operations at the Johnson Camp Mine (JCM) in south-east ...

A federal judge today overturned the U.S. Forest Service’s approval of a controversial open-pit copper mine in southern ... Biological Diversity, the Arizona Mining Reform Coalition and the Sierra ...

Freeport-McMoRan owns stakes in 10 copper mines including three of the world ... 55% of the Cerro Verde mine in Peru, and 72% of Morenci in Arizona. In 2023, it sold around 1.2 million metric ...

Conservation groups filed a formal notice of intent to sue the U.S. Environmental Protection Agency today in response to the Arizona Department of Environmental Quality’s decades-long failure to limit ...

When the Arizona Department of Environmental Quality got a call ... you could actually see that orange material precipitating out from the waste.” The McKinley Mill Mine, first documented in the early ...