State environmental regulators have denied a petition to list the Big Hole River as impaired. Water conservation groups worry ...

The Montana Department of Environmental Quality is asking for photo and video evidence of algal blooms and other data from ...

Montana officials have denied a petition asking the state to designate the Big Hole River as "impaired" by pollution. Two ...

The Upper Missouri Waterkeeper and Big Hole River Foundation continued their campaign this week to encourage DEQ to designate ...

Montana’s environmental regulator has denied a petition to designate the Big Hole River as impaired by nitrogen and phosphorus, throwing a wrench in environmentalists’ efforts to put the blue-ribbon ...

The Montana Department of Environmental Quality has rejected a petition filed by two river advocacy groups seeking an ...

Trout tagging is going on its second year in the Big Hole, Beaverhead, Ruby and Madison Rivers. Tagging local trout is meant ...

Two conservation groups are petitioning the Montana Department of Environmental Quality to designate the Big Hole River, a treasured southwestern Montana fishery, as impaired for nutrient pollution.

Environmental Agency Denies Petition to Designate Big Hole River as Impaired by Nutrient Pollution Montana’s environmental regulator has denied a petition to designate the Big Hole River as ...

Two river groups advocating for the Big Hole River pushed back this week after their petition seeking a specific impairment designation for the river was denied in mid-April by the Montana ...

Submit any photos, videos or drone images of algae blooms on the Big Hole River. Already submitted or collected by the state. That’s according to the petitioners. Submit data about the aquatic ...