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Gallatin River Fishing Report

Date: 08/12/2026
Posted by: Toby Swank

Current Conditions

The Gallatin River is exactly where it should be for August. The canyon has been fishing the best, with cool water, good dry fly action, and plenty of fish willing to eat a well-presented hopper or spruce moth. 

The lower river is much tougher during the afternoon and remains under hoot owl restrictions from Cameron Bridge to the Missouri River. Smoke has settled into the valley this week, making for hazy mornings and poor visibility, but it hasn't changed the fishing.

This is a river where it pays to keep moving. Cover water with a tan chubby chernobyl or spruce moth and trail an olive or black perdigon underneath. Most fish are sitting in the faster pocket water, and there's usually no reason to stand in one spot very long.

The surface bite has been better than it was a couple of weeks ago. Spruce moths are still around in the canyon, and hoppers are becoming more important every day. Fish are spread out, so if one run doesn't produce, the next one usually will.

Addtional Gallatin River Fly Fishing Resources:

Bozeman Fly Fishing Report | August 2026 Montana Conditions

Stream Flows

View stream flow graph on USGS

Recommended Flies

				  Chubby chernobyl royal

Royal Chubby Chernobyl

				  Yellow sally

Yellow Sally Stimi

				  Rainbow spanish bullet

Rainbow Spanish Bullet

				  Fly fish Montana's Caddis hatch early season on the Madison River.

X caddis

				  Flashback Pheasant Tail TNG G Bd PT

Pheasant Tail

				  Great attractor pattern when fishing Yellowstone River in Montana.

Purple Psycho Prince

				  Pats rubberleg bronw

Brown Pat's Rubberleg

				  Purple lite brite perdigon nymph

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

Post Date: 03/29/2025

River shuttle services are an integral part of the Montana fly fishing scene as floating these legendary western rivers is the standard way to fish and experience them. Be sure...

Learn More

Montana Fly Fishing Trip Photo Galleries

Post Date: 03/29/2025

Get a glimpse into a day of guided fly fishing in Montana from the viewpoint of the guides and guests with Bozeman fly fishing outfitter, Fins and Feathers Guide Service...

Learn More

Gallatin 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 More

Gallatin River Fly Fishing Area Map



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