Black Rock State Park: Connecticut’s Mattatuck Trail Gateway
In the Western Highlands of Watertown, Connecticut, a massive outcropping of dark rock rises above the Naugatuck Valley, giving sweeping views across the ridgelines to Waterbury and beyond. This is Black Rock State Park, a 444-acre retreat built around swimming, camping, and access to one of Connecticut’s finest long-distance hiking trails — the 42-mile Mattatuck Trail.
Black Rock is the kind of park that does everything well: a clean, popular swimming pond with a sandy beach, a 96-site campground tucked into mixed hardwood forest, and trails that range from a 30-minute lakeside stroll to strenuous climbs along the blue-blazed Mattatuck. For a state known more for seaside towns than mountains, Black Rock is a welcome reminder that Connecticut’s interior has real elevation and serious hiking.
Park Facts at a Glance
| Information | Details |
|---|---|
| 📍 Location | Watertown, Litchfield County, Connecticut |
| 📐 Park Size | 444 acres |
| 🥾 Trails | Mattatuck Trail (42 mi) passes through park |
| 🏊 Swimming | Black Rock Pond (seasonal beach) |
| 🏕️ Camping | 96 sites + 4 rustic cabins |
| 🌲 Terrain | Western Highlands, hardwood/conifer forest |
| 💰 Parking Fee | $15 weekdays, $22 weekends (non-resident) |
| 🕐 Season | Camping: mid-April to Sept 30 |
| 📞 Phone | (860) 283-8088 |
The Mattatuck Trail
The blue-blazed Mattatuck Trail is a 42-mile long-distance hiking trail that passes directly through Black Rock State Park, making the park an ideal trailhead or overnight base camp. The trail traverses the steep ridges of Connecticut’s Western Highlands, offering views of the Naugatuck Valley, remote forests, and — further along — the spectacular Buttermilk Falls. Within the park, the Mattatuck climbs steeply from the lake area to the Black Rock summit, where the views alone make the effort worthwhile.
Swimming at Black Rock Pond
Black Rock Pond is the park’s centerpiece for summer recreation. A sandy beach area provides access to the pond, which is popular with families. Swimming is permitted during the summer season with lifeguards on duty at posted times. The pond is surrounded by forest, creating a secluded woodland feel despite being just off Route 6.
Camping
The campground features 96 campsites for tents, trailers, and RVs, plus 4 rustic cabins. Each site includes a fire ring and picnic table. Facilities include bathhouses with hot showers, flush toilets, and a dump station. Note: individual sites do not have electric or water hookups. The campground is open from mid-April through September 30.
Frequently Asked Questions
What is the Mattatuck Trail?
The Mattatuck Trail is a 42-mile blue-blazed hiking trail that runs through Connecticut’s Western Highlands, including Black Rock State Park. It offers rugged terrain with significant elevation changes, ridgeline views of the Naugatuck Valley, and access to scenic features like Buttermilk Falls. Black Rock State Park serves as a convenient trailhead and overnight camping base for hikers.
Can you swim at Black Rock State Park?
Yes, swimming is available at Black Rock Pond during the summer season. The pond has a sandy beach area with lifeguards on duty at posted times. It’s a popular spot for families. The swimming area is typically open from Memorial Day through Labor Day.
Does Black Rock State Park have hookups?
No — Black Rock offers dry camping with no electric or water hookups at individual sites. However, the campground provides bathhouses with hot showers, flush toilets, and a dump station. The 96 sites accommodate tents, trailers, and RVs. Four rustic cabins are also available for those who prefer a roof overhead.
Are Connecticut state parks free?
Connecticut state parks are free for walk-in and bicycle visitors year-round. Vehicle parking fees ($10-$22 for non-residents) apply at beach and lake parks during summer. Inland trail parks are typically free.
What are the best state parks in Connecticut?
Top parks include Sleeping Giant (panoramic views), Hammonasset (largest beach park), Talcott Mountain (Heublein Tower), Gillette Castle (riverfront estate), and Kent Falls (tallest waterfall).
Can I see waterfalls at Connecticut state parks?
Yes, Kent Falls State Park features a 250-foot multi-tiered waterfall cascade — the tallest in Connecticut. Other waterfall parks include Wadsworth Falls and Enders State Forest.
When does beach season start at Connecticut state parks?
Beach season at Connecticut coastal parks runs from Memorial Day through Labor Day, with lifeguards on duty. Parking fees for non-residents apply during this period. Arrive early on summer weekends as lots fill quickly.
Explore More Connecticut State Parks
Black Rock State Park is one of many outstanding state parks in Connecticut. Discover more parks in our Best State Parks in Connecticut guide, or use our Park Finder to search by activity, location, or features.
Wildlife & Nature
Black Rock SP — 444 acres with the Black Rock Pond. The park’s hardwood forest, rocky terrain, and pond support white-tailed deer, great blue herons, and red-tailed hawks. The Mattatuck Trail passes through.
Nearby Attractions
Watertown — adjacent. Litchfield County — surrounding.
Nearby state parks: If you have extra time, Mattatuck State Forest is a short drive away, and Naugatuck State Forest is a short drive away.
Camping reservations: Book campsites and cabins for Connecticut state parks online at connecticutstateparks.reserveamerica.com.
Park Location
Top Tours & Activities Near Connecticut
from $100
from $28from $75