A U.S. appeals court has put the brakes on the transfer of federal forest land in Arizona to a company that plans to mine one ...

Two of the world's largest mining firms, Rio Tinto and BHP have been trying to develop Resolution Copper for roughly two ...

Arizona tribal leaders reacted angrily after President Donald Trump said their opposition to a copper mine was un-American.

President Trump calls court blocking of Arizona copper mine project 'anti-American' as 9th Circuit temporarily halts land ...

President Trump signaled support for a giant copper mine in Arizona following a meeting with the heads of two of the world’s ...

This came a day after the opponents succeeded in temporarily blocking the project. The president called opponents of a huge ...

Hours before a disputed land swap was to take effect, an appeals court halted the process, giving copper mine opponents more ...

A U.S. district judge has denied a request by a Native American tribe and environmentalists to stop the federal government ...

A federal land swap will have to wait as another legal challenge to a controversial Arizona copper mine makes its way through ...

Rio Tinto Group’s Jakob Stausholm; his incoming replacement, Simon Trott; and counterpart at BHP Group, Mike Henry, met the ...

BHP and Rio Tinto chiefs affirmed their commitment to the Resolution project at the meeting. Henry said in a statement ...

Based on current water prices, Arizona would be giving $404 million worth of groundwater to the two largest mining companies in the world, which plan to construct the Resolution Copper Mine 70 ...