Three trails comprise the Mon River Rail-Trail System—the Mon River Trail, Caperton Trail, and Deckers Creek Trail. The Mon River Rail-Trail has a paved 6-mile section near the middle called the Caperton Trail, and on both ends it is compacted stone, making for a seamless 29-mile trail. The Caperton Trail has an urban feel, connecting to restaurants, playgrounds, city parks, and neighborhoods as it passes through the towns of Morgantown and Star City. Outside city limits, the rail-trail meanders through a shaded river valley with many scenic river views, occasional waterfalls, and a variety of wildflowers. At the Mon River Trail’s southern end at Prickett’s Fort State Park, trail users can pick up the Marion County Trail (MCTrail) to reach Fairmont. Trail users can also head north out of Morgantown to reach the Pennsylvania state line and connect to the Sheepskin Trail into Point Marion, PA. The Deckers Creek Rail-Trail links off of the Caperton Trail in Morgantown and climbs along the creek for 19.5 miles.

The Mon River and Deckers Creek Rail-Trails outside of Morgantown and Star City are wild and wooded and have no access to food, water, or restrooms. During trail season, restrooms are open at Pricketts Fort, Morgantown, Star City, Van Voorhis, and Masontown Trailheads. Trailheads along the entire trail accommodate shorter adventures and at several areas also double for river access on the Monongahela River Water Trail.