Brown trout can harm native trout species, such as bull trout and westslope cutthroat, by outcompeting them for resources and ...

Research in recent years has identified issues affecting rivers and aquatic life in the Jefferson River Basin, including low dissolved oxygen, warm temperatures, algae blooms and nutrients.

Hoot owl restrictions are going into effect for the Bitterroot River between Veteran’s Bridge in Hamilton to the confluence ...

Hoot-owl restrictions will take effect on the Bitterroot River starting Wednesday at 2 p.m., extending from Veteran’s Bridge ...

Nearly a dozen rivers in western Montana and a handful of rivers inside the borders of Yellowstone National Park are under ...

A dozen rivers — including the Madison, Gibbon and Firehole in Yellowstone National Park — are subject to the restrictions on afternoon fishing or all-out closures as biologists grapple with ...