Season: Year-round
Filed Under: Fishing
The Gallatin River is about 97 miles long from its origin at the confluence of the West and East Gallatin rivers to Three Forks, Montana, where it joins the Jefferson and Madison rivers to form the Missouri River. The river flows through a narrow valley consisting of agricultural and grazing lands at elevations less than 5,000 feet. The banks are primarily undercuts, and long, deep pools provide much of the fish cover. Except for the East and West Gallatin rivers, tributaries to the Gallatin River are limited to a few spring creeks. Water can be slightly turbid year-round due to the sediment input from the East Gallatin. The Gallatin River below the confluence of its forks suffers from sedimentation, warm water temperatures, dewatering, and the presence of M. cerebralis, the causative agent of whirling disease. Trout populations decline in the lower river due to these factors and a variety of other cumulative impacts.

Comments
sean said ...
Even though it runs along the two lane highway, this is a very pretty stream. I think I read somewhere this is where "A River Runs Through It" was filmed ... even though it was supposed to have taken place around the Blackfoot River and the Bitterrot River. I caught quite a few rainbows, and I'd have to say they were among the most acrobatic trout I have ever hooked. Once hooked they would clear the water 5-6 times before netted.
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