One of the biggest projects that could get approved during Trump’s term is Rio Tinto’s Resolution copper mine near Superior, Arizona, which could meet a quarter of US copper needs. Another is the Twin ...

Grijalva, the son of a Mexican immigrant who rose to the halls of Congress in a public-service career that stretched more ...

If you plan to travel between Superior and Miami this week, prepare for some closures as crews work on blasting operations.

Grijalva, the son of a Mexican immigrant who rose to the halls of Congress in a public-service career that stretched more than 40 years, has died.

An Upper Peninsula underground mine that employs 475 people is looking to expand its hunt for valuable minerals through an ...

It's the largest private investment ever made in Southern Arizona and is getting closer to being fully operational.

A big new mining project is coming together near Patagonia—-promising well-paying jobs, while environmentalists worry about what the mine could do to the area.

SUPERIOR, AZ (AZFamily) — The Pinal County Sheriff’s Office released a video on Saturday of crews saving a rock climber who fell more than 40 feet earlier this year. Rescue teams were called ...

The toxic legacy of Cold War uranium mining and milling has shattered lives, destroyed homes and created a pollution problem for an entire region.

The Debswana Jwaneng Mine in Botswana, is the world's richest diamond mine by value, being worth about £1 billion. The mine is managed by Debswana, which is a joint collaboration between the ...