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

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 ...

Berkeley Pit, an open-pit copper mine that has been allowed to fill with water since its closure in 1982, is seen in this October, 2003 file photo. Credit: WALTER HINICK /THE MONTANA STANDARD VIA ...

“Fish, like most other organisms in the stream ... Treating the contaminated Berkeley Pit has been a team effort of Montana Resources and Atlantic Richfield/BP. The campaign focuses on ...