President Donald Trump issued a March executive order to increase American mineral production to protect national security.

just west of Salt Lake City, is the largest open-pit mine in the world, spanning 2.5 miles across and about 4,000 feet deep. At more than 120 years old, the mine has produced more copper than any ...

The Trump administration put Resolution Copper's proposed mine at Oak Flat on a priority list with nine ... Voice of America ...