Turning abandoned open-pit mines into solar farms could resolve growing land-use tensions and unlock vast, underused ...

Next to the mine is the Berkeley Pit, which is filled with 50 billion gallons of a highly acidic, toxic brew. Montana Resources pipes liquid from the pit, enabling it to cascade onto piles of ...

In July, Alamos expanded its Canadian position with a deal for Argonaut Gold. Alamos Gold CEO says he thinks Mexican politicians will reconsider proposed open-pit mining ban. The market’s back ...