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

Arizona lawmakers touted significant direct and indirect economic benefits of adding copper to the USGS list. Five of the nation’s biggest copper mines are in Arizona, all run by Freeport-McMoRan.

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

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 ...

Assigned a "Hold" rating to Arizona Metals Corp. due to promising copper production potential and strategic importance in the US's domestic supply chain policy. Kay Mine Project shows significant ...

which would discharge copper and other pollutants into the important desert stream. The mining operation would also destroy Oak Flat, an Indigenous sacred site in the mountains east of Phoenix. “The ...