Gallatin River Fishing Report
Date: 08/31/2026
Posted by: Toby SwankCurrent Conditions
The Gallatin River has picked up some color from the recent rain, but it's still fishable. If the weather settles down, it should continue to clear over the next day or two. The canyon has been in the best shape, while the Gallatin Valley stretches have been a little more stained.
Nymphing has been the most consistent way to catch fish. A beadhead pat's rubberlegs with a size 16–18 black or olive Spanish bullet perdigon underneath has been the go-to setup. Make sure you're getting the flies down before changing patterns.
The added color has also made streamer fishing worthwhile, especially through the Gallatin Valley. Mini dungeons in black, olive, and white have been moving some better fish and are a good choice for anglers looking to target pre-spawn brown trout.
If the rain stays away, expect the Gallatin to keep improving over the next few days.
Addtional Gallatin River Fly Fishing Resources:
- Bozeman Fly Fishing Report | August 2026 Montana Conditions
Stream Flows
View stream flow graph on USGS
Recommended Flies
Tan Morrish Hopper
Royal Chubby Chernobyl
Yellow Sally Stimi
Rainbow Spanish Bullet
X caddis
Pheasant Tail
Brown Pat's Rubberleg
Purple Lite Brite Perdigon
Gallatin River Fishing
Read our "Gallatin River Fishing Guide" to learn more about fly fishing in Montana on the Gallatin River. It is a great resource for anglers fishing near Bozeman Montana and details the various river stretches and seasonal hatches with tips from our Bozeman fly fishing guides.
Additional Gallatin River Fly Fishing Resources
Montana River Shuttles
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Learn MoreMontana Fly Fishing Trip Photo Galleries
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Learn MoreGallatin River Guided Fly Fishing Trips
Post Date: 03/29/2025
Montana fly fishing trips on the Gallatin River with the team at Fins and Feathers Guide Service includes wading the canyon sections south of Bozeman and floating the lower river...
Learn MoreGallatin River Fly Fishing Area Map
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