If winter fishing has been on your mind, the Gallatin is doing its thing right now. With less ice hugging the banks and the river looking more like late fall around Bozeman, there is still plenty of open water and willing fish—especially if you time it right. Midday has been the sweet spot, with trout holding deep and responding well to simple, effective nymph setups and the occasional well-placed streamer. Dry flies haven’t been much of a player, but solid winter tactics are producing consistent results. Fins & Feathers breaks down what’s working, where to focus, and how to dial it in for a productive day on the Gallatin below. And they score the Gallatin a 3/5 for fishability.
Current Conditions
The Gallatin River is fishing well right now. There is not as much ice along the banks as in the past few weeks, and it’s looking more like fall around Bozeman again, though the main channel remains open. Midday has been the best time to be out there.
Nymphing with attractor-style patterns has been working well. Rubberlegs, small stonefly nymphs, zebra midges, and slim perdigons like spanish bullets or blowtorches have all been good choices. A 9-foot fluorocarbon leader of 3X or 4X works well, with enough weight to keep flies down where fish are holding.
Fish have been sitting in the deeper water. Spending time in those sections with slower-moving water has been more effective than moving around or fishing shallow stretches, which haven’t offered much lately.
Streamer fishing is worth mixing in. Smaller sculpin-style and baitfish patterns have moved a few fish during the warmest part of the day. A shorter leader of 5–6 feet of heavier fluorocarbon (1X or 0X) helps keep things under control.
Dry-fly fishing has been very limited. Midges are around, but surface activity has been scarce.
Overall, the Gallatin River remains a solid winter option. Focus on the middle of the day, fish deeper water, and keep your setups simple for the most consistent results.
A limited edition hardbound copy ($30) will only be available at the official launch of the book (and after, as supplies last), on December 16, 2025 at 6:30 p.m. in the Montana Tech Library Auditorium. Both Dr. Horner and Dr. Rogers will speak and sign copies at that event.
On the morning of June 14, 2025, Wyoming Game and Fish Department personnel received a report that a cow moose had been shot in a confrontation with an angler on the North Tongue River in the Bighorn National Forest near Bear Lodge Resort. When game wardens responded, they found the moose deceased from her injuries.
