What started as a fun, relaxing evening of inner tubing down the Jefferson River turned into a traumatic experience for Jen Royce and her two friends after they were attacked by an otter.

Brian Wheeler, director of Save Wild Trout, recently documented extensive algae blooms on the Big Hole, Jefferson and Boulder ...

The Jefferson River at Sappington Bridge near Cardwell, Mont., in an undated photo. A rare river otter attack along a nearby stretch of the river on Wednesday left three women injured.

In mid-to-late summer, the Jefferson River’s flow downstream of a major irrigation diversion near the Waterloo Bridge — and a host of other agricultural withdrawals upstream — typically ...

The women were floating along the Jefferson River on Wednesday around 8:15 p.m. when they observed one or two otters, the Montana Fish, Wildlife and Parks (FWP) said in a news release Thursday.

The Jefferson River and more sections of the Big Hole River will close to fishing starting Saturday, Aug. 3, due to low flows. The full fishing closure will include the entire Jefferson River, ...

Widespread algae blooms are emerging across southwest Montana’s waterways. And, Fishing restrictions hit Southwest Montana.

KBZK Bozeman, MT. Montana FWP gives update on fish studies in the Jefferson River system. Posted: February 10, 2025 | Last updated: March 8, 2025 ...

Northern river otters are members of the weasel family and can reach up to 20 pounds — as heavy as a small dog — and up to 47 inches long. They primarily eat fish.

In mid-to-late summer, the Jefferson River’s flow downstream of a major irrigation diversion near the Waterloo Bridge — and a host of other agricultural withdrawals upstream — typically ...

Three women suffered injuries in an otter attack in Montana’s Jefferson River this week, wildlife officials said. The attack took place about 8:15 p.m. Wednesday while three women floated on ...