This park encompasses the confluence of the Jefferson, Madison and Gallatin Rivers. The Lewis and Clark Expedition arrived to the Headwaters on July 25, 1805 and were encouraged by Sacajawea’s recognition of the area where she had been kidnapped by the Hidatsa five years earlier. The Corps camped at the headwaters of the Missouri and named the three river forks the Madison, Gallatin and Jefferson after the President and two Cabinet members who financed the expedition.
An easy three-mile drive off Interstate 90 at Three Forks, this undeveloped park provides outdoor interpretive signs, picnic spots, short hiking trails and a small campground.
Missouri Headwaters State Park is located 3 miles off I-90 at the Three Forks exit.