An curved arrow pointing right. If migrating birds land on Montana's Berkeley Pit for just a few hours, they die. Now, miners use a rifle, drones, and lasers to scare them away. More from Science ...

Both Montana Resources and Atlantic Richfield/BP are involved in treating water pumped from the Berkeley Pit. But Thompson said the volume of discharge has declined significantly in recent years ...

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.

The territory served by Caleb Uerling, a fisheries biologist for Montana Fish, Wildlife & Parks, includes Silver Bow Creek, Warm Springs Creek, the Clark Fork River and other streams in the upper ...