Caleb Uerling, a fisheries biologist for Montana Fish, Wildlife & Parks, believes the high conductivity of treated Berkeley ...

Caleb Uerling, a fisheries biologist for Montana Fish, Wildlife & Parks, believes the high conductivity of treated Berkeley Pit water discharged into Silver Bow Creek could affect trout.

Surface waters that drain this area contain heavy metal contaminated mineral nanoparticles. Such environmental nanoparticles contribute to the transport of these metals up to 500 km downstream.

Gardner persuaded Dennis Washington to buy the Butte mine in 1985 and then served as president of Montana Resources.

To see the best of Butte, Montana, all Joyce OBill has to do is ... the mile-long crater on the east side of town known as the Berkeley Pit, or just the pit, a former open-pit copper mine almost ...

Snow geese fly along the bank of the Berkeley Pit's toxic waters, in Butte, Montana, Nov. 30, 2016. Credit: Walter Hinick /The Montana Standard via AP Thompson of Montana Resources said the geese ...

A great flock of snow geese traveling south came upon a small body of water in Butte, Mont. They swirled and landed on the water. However, this was no ordinary pond This advertisement has not ...

The town of Anaconda, Montana, doesn't have the most ... It wasn't as hard-hit — environmentally — as neighbor Butte (home to the unfortunate Berkeley Pit, a highly toxic superfund site ...

Mark Thompson, vice president of Environmental Affairs for Montana Resources in Butte, readily acknowledged ... in treating water pumped from the Berkeley Pit. But Thompson said the volume of ...