Jones Mill Run is a 14.7 mile lightly trafficked loop trail located near Somerset, Pennsylvania. The trail is good for all skill levels and primarily used for hiking and mountain biking. 14.7 miles 1912 feet Loop kid friendly hiking mountain biking Expand Map VIEW FULL MAP Sign up now to see this map! Reviews (0)Photos (4)Recordings (2)No one has reviewed this trail yet. Be the first!