Tucked in the Arizona desert, Castle Dome City is more than a ghost town—it’s a living museum of the Old West. Once a booming ...

Mineral extraction has become central to U.S. security and trade policy. But can Arizona mines extract minerals responsibly?

The Trump administration plans to move ahead with a land swap that would enable work to start on a huge copper mine at Oak ...

Scattered across Arizona are nearly 200,000 abandoned mines. Many of them sit quietly in Mohave County, tucked into hills and ...

Freeport is trying to develop technology that can burrow within those gigantic waste piles at Morenci and extract low-grade copper that miners previously saw as too expensive.

US Forest Service Issues Notice on Contested Land Transfer for a Major Copper Mine in Arizona The U.S. Forest Service on Thursday provided notice that it will publish a final environmental review ...