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

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.

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.

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 ...

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

Officials with the Montana Department of Fish, Wildlife and Parks still don’t know how a nonnative brown trout ended up in ...

State wildlife officials on Monday confirmed the presence of a non-native brown trout in the Flathead River basin, according to a press release from Montana Fish, Wildlife and Parks.