The Gallatin River is a tributary of the Missouri River, approximately 120 mi (193 km long), in the U.S. states of Wyoming and Montana. It is one of three rivers, along with the Jefferson and Madison, that converge near Three Forks, Montana, to form the Missouri.Make Gallatin River part of your personalized Bozeman itinerary using our Bozeman day trip app.
It rises in the northwest corner of Yellowstone National Park, in northwestern Wyoming, in the Gallatin Range of the Rocky Mountains. It flows northwest through Gallatin National Forest, past Big Sky, Montana, and joins the Jefferson and Madison approximately 30 mi (48 km) northwest of Bozeman. U.S. Highway 191 follows the river from the Wyoming border to just outside Bozeman.
The river was named in July 1805 by Meriwether Lewis at Three Forks. The eastern fork of the three, it was named for Albert Gallatin, the U.S. Treasury Secretary from 1801–14. The western fork was named for President Thomas Jefferson and the central fork for Secretary of State James Madison.
Gallatin River reviews
We spent four nights at a cabin in the north end of Gallatin Canyon and experienced one of the most memorable summer getaways ever on our first venture to Montana. The August weather was perfect... more »
We drove along it on 2 different occasions. It is just so pretty as it rushing along the side of the highway. There were a lot of people fly fishing & also rafting. Just people enjoying the beautiful.... more »
Gorgeous river, mountains, and meadows. Love this scenic drive!
Lots of fun fly fishing. Beautiful area. Totally worth the experience if you are visiting Montana.
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