The Story Behind Montana’s Acid Lake Will Fascinate You

Did you know Montana has something that’s often called an “acid pit of doom?”

The Berkeley Pit is a former open pit copper mine located in Butte. It’s filled with water that is heavily acidic, laden with heavy metals, rich with dangerous chemicals, and just a real problem in general.

The Berkeley Pit is a small part of Butte’s fascinating history. When you’re there, make sure to check out the World Museum of Mining.