Most copper comes from Arizona. But Trump’s announcement that he will halt production of pennies won’t make a dent in the ...

"We will be a sacrifice zone in every sense of that term." Locals fear new massive mining project will have devastating ...

The first six transports of uranium ore from the Pinyon Plain Mine in northern Arizona were delivered to Utah last week.

The Interior Department is moving to overturn a key Biden administration policy stemming from two court rulings that blocks ...

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When they get done processing those millions and billions of tons of rock, where does the waste go after it’s been processed ...

Coconino County Sheriff's Office said Bobby Mason was accused of crashing his drone into the mine and causing numerous car ...

A fire in mid-October at a new Freeport smelter in Indonesia damaged its operations. In the fourth quarter earnings call, ...

Arizona's Republican Senate president is hoping the Trump administration will undo actions by former presidents that curtail ...

A coalition of environmental groups is appealing the air permit granted to Hudbay, the parent company of the Copper World ...

Freeport-McMoRan has a mining location south of Tucson near Sahuarita and a technology center in Tucson. The company has worked with Sahuarita Unified School District, supporting students to ...