Near Bolton, the rooty, 20km Bolton Valley Trail rolls over several hills and along a scenic river. Be prepared for a tough mountain bike ride with two river fords. To reach the mountain biking trailhead from Bolton, follow Duffys Lane north 2-3km past King Street. The trailhead parking is just after the first bridge.
Overall, Bolton Valley Trail is the 10th most popular mountain bike trail of all 22 mountain biking rides in Ontario.