The transfer of federal forest land in Arizona to a pair of international companies that plan to mine one of the largest ...

By Ernest Scheyder March 16 (Reuters) - Rio Tinto said on Monday it has gained control of acreage in Arizona needed to build ...

Rio Tinto's joint venture with BHP has gained ​control of acreage in Arizona needed to build the Resolution Copper mine after ...

Rio Tinto and BHP’s legal win was a milestone in their bid to establish a copper mine in Arizona that has been caught in ...

A federal land transfer giving Resolution Copper nearly 2,500 acres in eastern Arizona, including a sacred site for the Western Apache and other Indigenous people, is officially complete.

The U.S. Forest Service transferred ownership of Oak Flat to Resolution Copper on Monday, a major setback for opponents of a massive mine at a site the San Carlos Apache Tribe considers sacred.

A federal appeals court has cleared the way for the Trump administration to transfer Oak Flat to a private copper mining company.

Copper has pulled back on Iran concerns, creating a buying opportunity for Freeport-McMoRan stock.

A group of Apaches filed a last-ditch effort to the Supreme Court to block a copper mining company from destroying a sacred ...

Lundin Mining to acquire additional 5% interest in the Caserones copper mine in Chile and a 30.9% stake in Los Helados ...

HILLSBORO — The lonely block house sitting on a hillside beneath Animas Peak near the former Quintana copper mine in Sierra County does not look like a likely location for an imminent industrial boom.