HELENA, Mont. — Butte’s Berkeley Pit is infamously known for its toxicity, but it’s also the site of vital minerals and rare earth elements. During a presentation to Montana’s Environmental Quality ...

BUTTE, Mont. — The Berkeley Pit is as infamous as it is deep, a sobering reminder of the perils of Butte’s rich mining history. But now, it could become a vital repository for the ongoing Superfund ...

Josh Bryson of Atlantic Richfield/BP confirmed Thursday night that analysis to date suggests the Berkeley Pit is the preferred option for a repository to receive contaminated materials from Superfund ...

The Berkeley Pit in Butte, Montana, has been a source of environmental concern for decades, as its waters—highly acidic and teeming with toxins—have seeped into the surrounding area. But today, this ...

The Berkeley Pit in Butte, Montana is so acidic it has the potential to fry birds inside out in a matter of hours. Locals, such as Mark Mariano, use a variety of methods to scare them away. The lake ...

BUTTE- The Berkeley Pit is completely frozen over due to the cold temperatures in the Mining City last week. It is a sight some people in Butte say they never thought they would see. Ice started to ...

The estimated 3,000 to 4,000 snow geese that perished in December 2016 in the Berkeley Pit’s toxic water died of both heavy metals and sulfuric acid, according to U.S. Fish and Wildlife Service ...