BUTTE, Mont. — Montana Resources and Atlantic Richfield Co. began the long-awaited discharge of treated water from Berkeley Pit into Silver Bow Creek in Butte this week, with little fanfare.

A report by The New York Times revealed that efforts to extract these precious materials from a closed mining operation called the Berkeley Pit in Butte, Montana, may help increase ... with 50 billion ...

Without the pumps running, toxic groundwater began filling the mile-wide hole. Within months, what had been Montana’s pride ...

Atlantic Richfield/BP and officials with the Montana Resources mine in Butte continue discussions about how the Berkeley Pit and a site off Shields Avenue could serve as repositories for Superfund ...

A toxic pit could be a gold mine for rare earth elements The global scramble for metals critical to manufacturing and technology advances has caused demand to soar.

A disoriented elderly man drove onto the frozen Berkeley Pit Monday night — and survived without incident, the Butte police department confirmed Friday.

With fewer mine workers, fewer people overall, the removal of neighborhoods, and less powerful unions, the expansion of the Berkeley Pit contributed to the “deindustrialization” of Butte ...

BUTTE - A federal judge has signed a brief order that determines the future of the Berkeley Pit.

Caleb Uerling, a fisheries biologist for Montana Fish, Wildlife & Parks, believes the high conductivity of treated Berkeley Pit water discharged into Silver Bow Creek could affect trout.