Native leaders say the courts have not treated religious rights equally, pointing to the current fight over Oak Flat.

The geology of the mine site consists of heavy faulting and fissures with a composition of limestone, quartzite and gypsum beds overlain in some areas by arkose and shale.

A federal judge laid out a timeline for the government to advance a contentious land exchange and copper mine but didn't halt the project.

The group Apache Stronghold is vowing to carry on the fight against a massive copper mining project on land the Apaches hold sacred, after a Supreme Court decision that is expected to let the mine ...

The nation’s highest court Tuesday rejected a request from some tribal members to halt construction of a large copper mine in Arizona that they argue will destroy sacred land. The Supreme Court ...

On this cloudless winter day, an azure sky above and dazzling white sand below created intense rays. Looking ridiculous in a sun-protecting hat, long sleeves and pants, I climbed to the highest point, ...

The most notable crude gypsum-producing states are California, Iowa, Kansas, Nevada, Oklahoma, and Texas. Nationwide, there are 45 mines in 15 states. Those of us in the building industry think mainly ...

The U.S. Forest Service will publish a decision on a transfer of land that would clear the way for a massive copper mining project in Arizona.

Ricky Wassenaar, serving 16 life sentences in Arizona, is accused of killing three inmates over two days. Authorities are investigating, raising concerns about prison safety and management.

Ohio Attorney General Dave Yost accuses United States Gypsum Co. of abandoning an agreement to maintain the stability of underground mines to keep an above-ground highway stable and safe.

Today, Ohio Attorney General Dave Yost announced a nearly $17 million lawsuit against U.S. Gypsum (USG) for what he says are sinkholes opening up near State Route 2 because of old mines.

OTTAWA COUNTY, Ohio — Ohio Attorney General Dave Yost announced Tuesday that he's suing a gypsum mining company for nearly $17 million for "failure to maintain" underground mines that led to ...