Devil's River State Natural Area Trails is a 20.7 mile lightly trafficked loop trail located near Del Rio, Texas and is rated as difficult. The trail is primarily used for mountain biking and is accessible year-round. DISTANCE 20.7 miles ELEVATION GAIN 1587 feet ROUTE TYPE Loop mountain biking Expand Map VIEW FULL MAP Sign up now to see this map! Reviews (0)Photos (1)Recordings (0)No one has reviewed this trail yet. Be the first!