The Berkeley Pit is a former open-pit copper mine in Butte, Montana—and one of the few places in the world where you can pay to see toxic waste.

At the Berkeley Pit, researchers hope to extract valuable metals to increase U.S. production of rare earths used in electric cars, medical advances and national defense. Ongoing extraction inside ...

Plant life at the Berkeley Pit may actually hold the key to helping mine-damaged lands recover their vitality.

The reason the Berkeley Pit's fog hasn't been studied, the agencies say, is because even while the water molecules might rise from the pit's water, the metals contaminating that water do not.

BERKELEY, NJ — A wildfire in Berkeley has grown to 150 acres and is 20 percent contained as of Tuesday morning, according to New Jersey Forest Fire Service officials.

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 — is teeming with life. From foxes and ...

8:30 p.m. update: The Fisher's Pit Wildfire in Berkeley was 70% contained on Tuesday evening, according to the New Jersey Forest Fire Service. The blaze poses no threat to populated areas and ...

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 ...

In the ’90s, the town promoted mining tourism, opening a roadside gift shop and charging visitors to gaze at the Berkeley Pit’s metal-melting waters. In 2006, The Daily Show visited.

BERKELEY - A wildfire that ignited in Berkeley Township on Monday afternoon has spread to nearly 200 acres, authorities said Tuesday afternoon.

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 ...