Southeast of Hartford near Chester, the 15,600 acre Cockaponset State Forest has a 30 mile trail system open to mountain biking. The routes follow a combination of singletrack and doubletrack dirt roads.
To reach the Cockaponset State Forest trailhead from SR9, use Exit #5 (Chester). Head west on SR9 for 1.5 miles past a childrens campground. Turn right heading north after the lake and continue for 2 miles. Turn left following signs to Pattaconk Lake heading up a hill. At the top of the hill, use either parking area.
Overall, Cockaponset State Forest is the 15th most popular mountain bike trail of all 16 mountain biking rides in Connecticut.