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 ...

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.

2025 BUTTE — The trout returned to Silver Bow Creek but no one said life would be easy. The territory served by Caleb Uerling, a fisheries biologist for Montana Fish, Wildlife & Parks ...

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 ...