A recent court ruling allows one of world’s largest mining companies to move forward in an area of religious and cultural ...

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.

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.

Work on a massive copper mine has begun after the federal government transferred thousands of acres of public land to ...

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

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

Arizona's technology sector is rapidly expanding into semiconductors, data centers and clean energy — and copper is essential ...

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

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

It’s also one of 60 critical minerals essential to U.S. economic, energy and national security applications, but it has vulnerable supply chains. Arizona State University is partnering with ...

Tempe's Arizona Sonoran Copper is suddenly at the center of a billion-dollar chess move, with Hudbay Minerals proposing an all-stock takeover worth about $1.5 billion that would pull the Cactus ...

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