Missouri Headwaters State Park Fishing Access Site provides access to the Gallatin River at the confluence of three major rivers (Jefferson, Madison, and Gallatin).

The park offers a boat ramp, 17 campsites, picnic areas, and interpretive trails, making it a convenient base for both fishing and paddling activities.

All watercraft must be inspected before launching; contact the park at 406-285-3610 for current conditions and availability.