Main Rattlesnake Trail FR 99 is a 8 mile out and back trail located near Missoula, Montana that features a river and is good for all skill levels. The trail offers a number of activity options and is accessible year-round.
From Missoula, at the junction of Van Buren Street and Interstate 90, take Van Buren north (Rattlesnake Dr.) about four miles north to the Rattlesnake National Recreation Area trailhead. Turn left off Sawmill Gulch Road to get to the ample parking area. Information board with maps and restrooms are available.