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Lyons Bridge is a day-use-only fishing and boating access site on the Madison River in Madison County, Montana, managed by Montana Fish, Wildlife & Parks. The ramp features two concrete launch lanes on the western side of the river, with ample parking and trailer access. Facilities include toilets, making this a convenient put-in for kayakers, canoeists, and motorboats. The site is open year-round and sits within Beaverhead National Forest.
This access point marks the beginning of the renowned "50 Mile Riffle," a productive stretch of river extending downstream to Varney Bridge. Lyons Bridge is ideal for paddlers looking to explore this scenic section of the Madison River. Several campgrounds operate within 10 miles, including Palisades, West Fork Madison, and Riverview—with the latter two offering reservations for those planning an extended trip.