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Mike Horse Mine Cleanup

In the 1940s, miners used metals-laced tailings to build the Mike Horse Dam at the origins of the Blackfoot River on Beartrap Creek near the Continental Divide. In 1975, the tailings dam blew out, dumping deadly levels of lead, copper and zinc into the Blackfoot. The mine’s corporate owner, ASARCO, rebuilt…
Protecting Selenium Standards in Lake Koocanusa

When the Montana Board of Environmental Review (BER) chose to void Montana DEQ’s protective water quality standard for selenium in Lake Koocanusa, it put the interests of a foreign mining company over the interests of Montana. The review board’s decision seems solely to benefit Teck Coal, the Canadian mining company that is…
Dry Cottonwood Creek Ranch

Cattle and Clean Water at Dry Cottonwood Creek Ranch From 2005 to 2021, Clark Fork Coalition and partners ran Dry Cottonwood Creek Ranch (DCCR), a 2,300-acre working cattle ranch in Montana’s Deer Lodge Valley, to be a living classroom for the largest river repair job in the West, located in…
Valiton Ditch Split Season Lease

Three landowners are working with us to reduce late season water use on the mainstem Clark Fork. They lease CFC their water right from mid-July through August and cease irrigation if flows reach low levels. We also improved a diversion to help fish passage. This project strikes a balance between…
Broken Circle Diversion Upgrade

Historically, Broken Circle Ranch rebuilt their irrigation diversion every summer using broken concrete and streambed material, which resulted in passage issues for fish and recreationists. In 2023, the ranch worked with the Coalition to install an innovative floating fish screen and river pump that requires minimal structure in the river…
Helen-Johnson Ditch Project

The Helen Johnson project reduced irrigation withdrawals from the mainstem of the Upper Clark Fork by over 15 cfs on three ranches. It removed a fish barrier and eliminated entrainment issues. The project replaced a portion of the ditch on the Lampert Ranch with a 2-mile stock water pipeline that…
Annual Clark Fork River Cleanup

The Clark Fork River Cleanup is an annual tradition when the community comes together to clean trash along the river banks before spring runoff and high water hits. Hundreds of people—including individuals, families, friends, schools, and business teams—join together for a good cause and celebrate the river we love and…
River Ambassadors

During the summer, Missoula River Ambassadors can be spotted at busy river access sites and community events, on popular day-float stretches, and immersed in conservation and restoration projects dotting Missoula’s urban river corridor. This team of community ambassadors guides the ever-growing river-recreation culture toward stewardship. During peak river season from…
Clean Smurfit Now

The Smurfit-Stone pulp mill operated on the banks of the Clark Fork River near Frenchtown from 1957 to 2010, discharging enormous amounts of wastewater into the river. More than a decade after the mill closed, the 3,200-acre industrial site is still leaching harmful chemicals into the river and our aquifer.
Granite Creek Restoration

To improve fish passage and reduce chronic stream sedimentation, we upgraded eight undersized culverts along Granite Creek Road. We also installed wood jams in the creek and reclaimed more than ten miles of unneeded forest roads. These projects decrease sedimentation, improve habitat connectivity, and increase the number of fish living…
East Fork Lolo Creek Restoration

On the East Fork Lolo Creek, we installed wood jams into the stream to create complex aquatic habitat and help filter and trap sediment. We also re-naturalized unused forest roads to decrease sources of sediment washing into the stream. Clark Fork Coalition has worked in the Upper Lolo watershed since…
Milltown Dam Removal

For 100 years, Milltown Dam blocked the confluence of the Clark Fork and Blackfoot rivers near Missoula, trapping toxic sediments that washed down from mines in Butte and contaminating local drinking water wells. Now, the dam is out, the mining waste is gone, fish can swim back upstream, and two mighty…