Missouri Headwaters State Park Image

Missouri Headwaters State Park's 532 acres encompass the confluence of the Jefferson, Madison, and Gallatin rivers—so named in 1805 by explorers Lewis and Clark—which mark the starting point of the 2,300-mile Missouri River.

The confluence has been equally important to state and national history. Flathead, Bannock and Shoshone Indians used the area, and competed for access to its well-watered wildlife. Settlers and trappers—included infamous long-distance runner John Colter—followed.

Today the park is best known for scenery. Floating, fishing, and photography are popular endeavors, as is the park's Summer Speaker Series, an educational presentation each Saturday evening at 7 pm in the park's picnic area, followed by a marshmallow roast (free and open to the public; BYO chair; call 406-285-3610 for info).

Additional park amenities include 17 campsites with grills and fire rings, tipi rental, picnic areas, potable water, trails, vault toilets, an RV dump station, and interpretive displays describing the area's cultural and natural history.

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