2 miles west of Thomaston on Rte. 6. The name "Black Rock" is derived from graphite that was mined here by early settlers. 96 campsites, concession, flush toilets, water, showers, picnicking, field sports, swimming, ice skating, pond and stream fishing, hiking on blue blazed Mattatuck Trail, x-country skiing. Leatherman Cave from park proceed west on Rte. 6 for 0.5 mi, park at Mattatuck Trail Marker. Alcohol Prohibited. Charge: daily. Campground Office: (860) 283-8088 (Weekends only - 3rd Sat. Apr. - Memorial Day. Memorial Day - Oct. 31st daily 8 a.m.- Sunset. Park Office: (860) 567-5694.