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

Federal appeals court blocks Oak Flat transfer to Resolution Copper with emergency injunction protecting Apache site ...

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

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

The Copper World mining project south of Tucson reaped a big financial boost Wednesday: Japan-based Mitsubishi Corp. will ...

And under current Arizona law, the mine would win that competition. Resolution Copper has pumped billions of gallons Resolution Copper plans to pump up to 600,000 acre-feet of groundwater ...

Drilling by Intrepid Metals (TSXV: INTR) in the Earp zone at its Corral copper project in southeast Arizona has returned ...