By Ernest Scheyder March 16 (Reuters) - Rio Tinto said on Monday it has gained control of acreage in Arizona needed to build ...

A joint venture of the world's two most valuable miners has gained control of former federal land in Arizona needed to build a mine that they say could meet up to a quarter of U.S. copper demand for ...

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

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 copper deposits, have completed a Federal land ...

WASHINGTON – The U.S. Forest Service transferred Arizona’s Oak Flat to Resolution Copper, advancing a massive mining project ...

A federal land transfer giving Resolution Copper nearly 2,500 acres in eastern Arizona, including a sacred site for the Western Apache and other Indigenous people, is officially complete.

Apache women petition the U.S. Supreme Court to halt the transfer of federal land in Arizona for copper mining, citing ...

(Reuters) - U.S. President Donald Trump on Tuesday criticized an appeals court's decision to temporarily block federal officials from completing a land transfer needed for Rio Tinto and BHP to develop ...

The Resolution Copper project was given a major boost today. The post Rio Tinto shares charge higher on big copper news ...

Apache women seek Supreme Court intervention to halt a copper mining project on federal land in Arizona, citing environmental ...