A surprisingly large number of voters in Arizona cast ballots in the race for State Mine Inspector, and we spoke with the two ...

Preview this article 1 min The expansion by Freeport-McMoRan would increase copper production by 200 to 250 million pounds per year. A final investment decision is expected by year-end. 40 Under 40 ...

One person is dead after an accident at a mine in southeastern Arizona on July 6, according to federal mine safety officials. At about 9:10 a.m., the incident occurred during surface copper mining ...

The U.S. Forest Service approved the Hermosa Mine in southern Arizona, an action conservations groups say puts critical habitat at risk.

Hermosa zinc-silver project in southern Arizona, clearing the final federal environmental review needed for key infrastructure on public land and advancing one of the country’s most closely watched ...

Injection wells are essential in mining copper for electronics, attempting carbon capture, and managing Arizona's water supplies.

Toronto, Ontario--(Newsfile Corp. - April 20, 2026) - Arizona Eagle Mining Corp. (TSXV: AZEM) (the "Company" or "Arizona Eagle") is pleased to announce that it has entered into agreements to acquire ...

The Trump administration is set to authorize South32 Ltd.’s planned $2 billion zinc and manganese mine in Arizona on Tuesday.

Growing demand for the minerals that lie deep inside Arizona's earth has triggered economic and environmental growing pains in a state where history is entwined with mining. Copper — at one time the ...

The U.S. Forest Service has approved a fast-tracked critical minerals mine in southern Arizona despite years of pushback from nearby communities The $2 billion South 32 Hermosa project will unearth ...