One of the largest open-pit mines in the world is right here in northern Utah, and it is once again open for visitors to tour ...

The Hull-Rust-Mahoning mine in Hibbing, the largest open-pit iron mine in Minnesota. Credit: CC/Wikimedia Commons/Chipcity Massive city footprints aren’t out of the norm on the Iron Range, where ...

BERLIN (AP) — Hundreds of climate activists called an end to their protest Sunday inside one of Germany’s biggest open-pit mines after police repeatedly ordered them to leave, citing life-threatening ...