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.

WASHINGTON – The U.S. Forest Service transferred Arizona’s Oak Flat to Resolution Copper, advancing a massive mining project opposed by tribes and environmentalists. Supporters say it boosts domestic ...

Rio Tinto said on Monday it has ⁠gained ⁠control of acreage in Arizona needed ⁠to build the Resolution Copper mine, a project ...

Resolution Copper is set to start exploratory drilling at Oak Flat after a long-sought land swap is completed.

Resolution Copper's top executive praised the court decision, saying it's time for this 'meritless litigation' to end.

A group of Apaches asked the Supreme Court in a last-ditch effort to halt the land transfer of a religious site to a copper mining company.

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

Oak Flat in Arizona is at the center of a struggle that's going on three decades. Here's everything that has happened with the proposed copper mine.

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