If you choose to pay the $2 admission to enter the viewing platform, you'll see a one-mile-long, half-mile-wide, 1780-foot-deep hole. Operating as a mine from 1955 to 1982, the pit is now filled ...

Plant life at the Berkeley Pit may actually hold the key to helping mine-damaged lands recover their vitality. Montana Tech researcher Grant Mitman is doing research with a kind of moss he found ...

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 ...

The reason the Berkeley Pit's fog hasn't been studied, ... Scavenged chemicals can also react inside fog droplets to create new species that may be harmful to health," Collett said via email.

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.

BUTTE — Over a thousand snow geese that landed in the Berkeley Pit's dangerously contaminated water this week have so far apparently survived — unlike the fate of 342 who ...

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.

BUTTE — The Berkeley Pit holds 45 billion gallons of water. The Yankee Doodle Tailings Pond holds more than 20,000 acre feet of water. With th ...