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 ...

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 ...

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