North of Cincinatti and Oxford, the 3,600 acre Hueston Woods State Park has the Hueston Woods Bike trail system which is a 12 mile network of rolling trails. The best trailhead parking is near the marina.
To reach the mountain biking trailhead from Cincinatti, head north on SR27 to Oxford. In the center of Oxford, turn right heading north on SR732 to the park entrance. Once inside the park, follow the signs north and west to the mountain biking trailhead parking area.
Overall, Hueston Woods State Park is the 2nd most popular mountain bike trail of all 24 mountain biking rides in Ohio.