Missouri Headwaters State Park, Three Forks

State Park · Historic Site
Missouri Headwaters State Park is a Montana state park that marks the official start of the Missouri River. It includes the Three Forks of the Missouri National Historic Landmark, designated in 1960 because the site is one where the Lewis and Clark Expedition camped in 1805. The park is open for day use and camping, offering hiking trails, hunting, and water-related activities. It is located on Trident Road northeast of Three Forks, Montana at an elevation of 4,045 feet (1,233 m).

Plan my day in Three Forks using traveler tips and tourist information provided by Inspirock.
Create an itinerary including Missouri Headwaters State Park
© OpenMapTiles © OpenStreetMap contributors

Missouri Headwaters State Park reviews

Rate this attraction
TripAdvisor traveler rating
TripAdvisor traveler rating 4.0
148 reviews
  • Really nice state park that has three main rivers running into the Missouri the Madison the Jefferson and the Gallatin. Caught some real nice rainbow trout and brown trout on the Gallatin before it...  more »
  • What a beautiful area that we had to ourselves! Seeing the headwaters and dipping our toes in the cold water was a great experience. The scenery is spectacular and you can walk along the 3 rivers...  more »
  • Excellent place to stop while driving up or down I-90. Great place to stretch legs and see some history. It's really a gem of an experience knowing you are standing at the confluence of the biggest river in the USA and all of the history that goes with it. The pay station was unattended. There is an outhouse bathroom by the pay station. Recommend walking the mowed trail that goes by the old hotel. . Kids enjoyed the park. We stayed about one hour total.
  • I live very close to the Missouri River in the Midwest. Thought about placing a small rubber duck in the river and wait until it came by my house but I didn't. Surprised how remote the area is. It would be helpful to have better signage labeling the area.

Plan your trip to Three Forks

  • Get a personalized plan

    A complete day by day itinerary
    based on your preferences
  • Customize it

    Refine your plan. We'll find the
    best routes and schedules
  • Book it

    Choose from the best hotels
    and activities. Up to 50% off
  • Manage it

    Everything in one place.
    Everyone on the same page.

Popular things to do in Three Forks

Duration: 2 hours
Duration: 2 hours
Duration: 2 hours

Side trips from Three Forks

Duration: 1h 30 min
Duration: 2h 30 min
Duration: 1h 30 min