Clark Fork River

Montana wildlife officials are investigating what’s being described as a "significant" fish kill along the banks of the Upper Clark Fork River.

Montana Fish, Wildlife and Parks fisheries biologist Nathan Cook fielded a report this weekend of several dead fish downstream of Warm Springs and upstream of Galen.

37 years ago, Atlantic Richfield abandoned an open pit copper mine in Butte and allowed it to flood with toxic mine water. Now, the company estimates they’re one month away from proving they’re in control of the Berkeley Pit. MTPR's Nora Saks got a sneak peek of their new water treatment facility and has more.

Representatives of state and federal environmental agencies will give an update on the polluted Smurfit-Stone mill near Frenchtown Tuesday, June 20 at 6:00 p.m. at the fire hall in Frenchtown.

People from around the country will gather in Washington D.C. Saturday for the "March for Science." Montanans that don’t make the trip will still have a chance to participate in the global event.

Organizers are billing the March as supporting, "robustly funded and publicly communicated science as a pillar of human freedom and prosperity," and, "for political leaders and policymakers to enact evidence-based policies in the public interest."

The EPA gave an update Tuesday on their ongoing investigation of pollution levels at the now-defunct Smurfit-Stone pulp and paper mill just west of Missoula.

There’s still a lot to figure out at the former Smurfit-Stone mill in Frenchtown.

The plant that operated on the 3,200 acre site for over 50 years just downstream of Missoula on the Clark Fork River used all kind of hazardous chemicals.