and the first mining in Bingham Canyon was underground, although the vast majority of ore has come from more than a century of digging what was once the world’s largest open-pit mine.

Silver is one of the most valuable metals in the world ... as one of Mexico's largest silver mines. Operated by Newmont Corporation, Penasquito follows an effective open-pit mining system to ...

Canadian firm Barrick Gold said Tuesday it was temporarily suspending operations at its Loulo-Gounkoto mine in Mali after the junta seized gold stocks from the site amid a months-long revenue dispute.

The Great Lakes region contains nearly 85 percent of North America's surface freshwater, and more than 20 percent of the world's supply of surface freshwater ... Any new heavy-metals mines in ...

the Super Pit and Newmont Boddington mines in Australia, Indonesia's Grasberg Mine, and mines in Nevada, US. China is currently the world's biggest miner of gold, while Canada, Russia, and Peru ...