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 ...

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 ...

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 ...

The area surrounding the Berkeley Pit — a man-made lake of toxic water in Butte that would likely kill a human or animal that drank from it — is teeming with life. From fox and marmot to deer ...

MONTANA Skyrocketing electricity prices in Montana are indirectly raising the level of Butte’s Berkeley Pit, a 900-foot-deep, 30 billion-gallon soup of acid-mine runoff that ranks as the nation ...

The Berkeley Pit in Butte is seen in this panoramic image shot in September 2023. Its contaminated waters could become a dumping ground for Superfund wastes excavated from sites in the Silver Bow ...

The Berkeley Pit is a former open-pit copper mine that began filling in 1982 with drainage from closed mines. It now holds about 36 billion gallons of water laden with metals, including arsenic ...

The Department of Defense has encouraged the Montana Mining Association and West Virginia University to pursue funding that could help the Berkeley Pit become a source of rare earth elements.

BUTTE — The area surrounding the Berkeley Pit — a man-made lake of toxic water in Butte that would likely kill a human or animal that drank from it — ...