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

The transfer of federal forest land in Arizona to a pair of international companies that plan to mine one of the largest copper deposits in North America is complete.

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

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.

The move facilitates the next stage of work and development planning for the Resolution Copper project.

In a huge blow to climbing and Indigenous rights, the U.S. Forest Service transferred Oak Flat's 2,422 acres to Resolution Copper.

The federal land swap grants thousands of acres of public land to Resolution Copper, following years of litigation, tribal opposition and political fights.

Miners sitting atop one of the largest copper deposits on the planet took a step toward production this week when the U.S.

The U.S. Forest Service has finalized a long-contested land exchange with Resolution Copper, clearing a major hurdle for development of one of the world’s largest undeveloped copper deposits.

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 ...

Depending on a final appeal to the Supreme Court, the U.S. Forest Service may soon finally move forward with the construction of a copper mine in the heart of Western Apache holy land.

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