Ninth Circuit judges appeared to grapple Wednesday during oral arguments with the potential harms of their decision on ...

(Reuters) - The full 9th U.S. Circuit Court of Appeals said on Thursday it will weigh whether the federal government improperly gave Rio Tinto Plc thousands of acres in Arizona for its Resolution ...

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

Environmental activists in Arizona have taken a step forward in their efforts to stop the Oak Flat land transfer to ...

SUPERIOR, Ariz., Nov. 5, 2025 /PRNewswire/ -- Resolution Copper has reached a major milestone with the completion of its multi-year, $200 million rehabilitation and deepening of the historic No. 9 ...

The MarketWatch News Department was not involved in the creation of this content. SUPERIOR, Ariz., Nov. 5, 2025 /PRNewswire/ -- Resolution Copper has reached a major milestone with the completion of ...

The metal lift clangs and rattles during its 10-minute journey down to “68 Level”, over two km beneath the scrubland near the Arizona town of Superior. Its passengers step out into what feels like ...