The Railroad Right-of-way trail begins at Warm River Campground south of Ashton on Highway 47 and ends at Reas Pass. The trail takes you right into the heart of the Island Park trail system. The trail follows an old railroad grade and travels through a railroad tunnel along its way. Warm River can be viewed for several miles from the trail. The trail has a 50-inch width restriction and intersects with various forest service roads. The Railroad Right-of-way trailhead is located 10 miles northeast of Ashton, along the Mesa Falls Scenic Byway. You can also access the Bear Gulch BPA North Trail that parallels the Railroad Right-of-way trail.