Twenty-one of Arizona's 22 tribes oppose Resolution Copper. Here's why the Oak Flat mine will harm Arizona's water, land and ...

SUPERIOR, Ariz., March 16, 2026 /PRNewswire/ -- The U.S. Forest Service and Resolution Copper, a joint venture owned by Rio Tinto and BHP that represents one of the world's most significant untapped ...

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. The ...

Rio Tinto Plc RIO, BHP Group Limited BHP, and the United States Forest Service (USFS) have finally completed a land exchange in Arizona. The transaction was a major hurdle for the development of the ...

To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Preview this article 1 min A proposed copper mine east of ...

Rio Tinto (ASX:RIO,NYSE:RIO,LSE:RIO) has cleared a key legal hurdle at its Resolution Copper project in Arizona, allowing the miner to advance exploration at a deposit expected to rank among the ...

In a news release issued March 16, the U.S. Department of Agriculture’s Forest Service says it has completed the Southeast Arizona Land Exchange and issued the final record of decision for the ...

The decade-long legal saga over Resolution Copper’s planned copper mine in Superior has a new twist with involvement from an Arizona politician. Arizona’s newest member of Congress, Rep. Adelita ...