Gallatin River

Gallatin River

MT

River

About Gallatin River

The Gallatin River is a premier Montana fly fishing destination, flowing north from Yellowstone National Park and offering approximately 100 miles of diverse water. You can expect to target Brown and Rainbow trout, with an occasional Cutthroat. Key hatches that drive the fishing include Caddis, Golden Stoneflies, and Spruce Moths, making it a prime location for matching the hatch. The river's accessibility is excellent, with Highway 191 running parallel to much of the river, providing numerous pull-offs and fishing access sites, making it ideal for both wading and short walks to the bank.

Access

Easy AccessHike In

Seasons

SpringSummerFallYear Round

Terrain

National ParkScenic Valley

Water

FreestoneMountain Stream

Fish Species

Brown Trout

Rainbow Trout

Cutthroat

Fishing Styles

Dry FlyNymphing

undefined USGS Water Conditions

Water conditions for the last 7 days. You can gain insights to fishing activity based on these conditions, like water temperature and flow.

Data sourced from the USGS National Water Information System

Quick Actions

Location

Trip Planning

Best fishing typically occurs during spring and summer. Check water conditions before heading out.

See what insects are emerging on Gallatin River's hatch forecast — including active hatches, water temperatures, and which patterns to have in your box this month.