🌤 Weather at Black Rock State Park by season
| Spring | Summer | Fall | Winter |
|---|---|---|---|
| 28–70 °F | 57–84 °F | 32–75 °F | 19–42 °F |
Each range runs from the coldest monthly average low to the warmest monthly average high in that season (1991-2020 climate normals), measured at Meriden Markham Municipal Airport, 15 mi away, elevation 103 ft. Conditions at the park can differ from the station, especially where elevation differs — check a forecast before you go.
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.
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.
⛺ Camping at Black Rock State Park: Campgrounds & Cabins
| Campsites | 68 sites — 68 sites across three loops (Sites 1-10/12-21/60-75; 22-36/44-46/49-59; 39-42/76-84/86-96 in the park's numbering, though only 68 are currently active/bookable). Mix of Standard Non-Electric, Standard Electric, Popup/Tent, and Tent Only sites; back-in or pull-through, 20-35 ft equipment length depending on site. No water or sewer hookups at individual sites. Sites 24, 26, 28-33 and 35 are being upgraded from non-electric to electric; reservations for these sites from June 22, 2026 onward are charged the standard-electric rate. $17/night CT residents, $27/night non-CT residents, plus reservation processing fee. Two full bathhouses with showers and flush toilets, though bathrooms are not available until Memorial Day (portable toilets provided until then). |
|---|---|
| Cabins & Lodging | 4 rustic cabins. $50/night for CT residents, $60/night for non-CT residents, plus reservation processing fee. Minimum age 21 to occupy a cabin. Cabins are not available for booking after Labor Day. |
| Pets | Pets and alcohol are prohibited at this campground (posted campground rule; Black Rock is a State Park, where CT's statewide policy bars pets from camping areas but allows them on-leash on trails/picnic areas). |
| Reservations | Via ReserveAmerica (connecticutstateparks.reserveamerica.com) or 1-877-668-CAMP (2267); bookable up to 11 months in advance. $9 reservation fee and $9 cancellation/change fee apply. Two-night minimum stay (one-night stays may be available 24-72 hours before arrival). Refunds: full refund minus fees if canceled more than 7 days before arrival; minus fees plus one night's cost if canceled 2-7 days before; no refund inside 2 days. Maximum length of stay is 14 consecutive days. |
| Special sites | After Labor Day, sites are reservable in advance for Friday/Saturday nights only and open to walk-ins Sunday-Thursday; cabins are not bookable after Labor Day. A dump station is available on site (no electric or water hookups there). A parkwide alcohol ban is in effect. |
| Season notes | 2026 season: peak May 22 - September 6, off-peak September 7 - October 11 (campground closes at noon on Columbus Day). |
Camping questions about Black Rock State Park
Can you camp at Black Rock State Park?
Yes. Black Rock State Park has 68 campsites. 68 sites across three loops (Sites 1-10/12-21/60-75; 22-36/44-46/49-59; 39-42/76-84/86-96 in the park's numbering, though only 68 are currently active/bookable). Mix of Standard Non-Electric, Standard Electric, Popup/Tent, and Tent Only sites; back-in or pull-through, 20-35 ft equipment length depending on site. No water or sewer hookups at individual sites. Sites 24, 26, 28-33 and 35 are being upgraded from non-electric to electric; reservations for these sites from June 22, 2026 onward are charged the standard-electric rate. $17/night CT residents, $27/night non-CT residents, plus reservation processing fee. Two full bathhouses with showers and flush toilets, though bathrooms are not available until Memorial Day (portable toilets provided until then).
How do you reserve a campsite at Black Rock State Park?
Via ReserveAmerica (connecticutstateparks.reserveamerica.com) or 1-877-668-CAMP (2267); bookable up to 11 months in advance. $9 reservation fee and $9 cancellation/change fee apply. Two-night minimum stay (one-night stays may be available 24-72 hours before arrival). Refunds: full refund minus fees if canceled more than 7 days before arrival; minus fees plus one night's cost if canceled 2-7 days before; no refund inside 2 days. Maximum length of stay is 14 consecutive days.
Are there cabins at Black Rock State Park?
4 rustic cabins. $50/night for CT residents, $60/night for non-CT residents, plus reservation processing fee. Minimum age 21 to occupy a cabin. Cabins are not available for booking after Labor Day.
Are pets allowed at the Black Rock State Park campground?
Pets and alcohol are prohibited at this campground (posted campground rule; Black Rock is a State Park, where CT's statewide policy bars pets from camping areas but allows them on-leash on trails/picnic areas).
Source: ctparks.com (verified July 2026). Details change seasonally — confirm when booking.
🐾 Dogs & Pets at Black Rock State Park
- Pets allowed? statewide rule
- Pets on a leash are permitted in most Connecticut state parks and forests, but not in buildings, swimming areas or state park campgrounds.
- Leash rule statewide rule
- Pets must be leashed and under control at all times; in state forest camping areas the leash may be no longer than 7 feet.
- Beaches & swim areas statewide rule
- Pets are prohibited in swimming areas; Sherwood Island and Squantz Pond State Parks ban pets entirely April 15 - September 30.
- Cabins & lodging statewide rule
- Pets are banned from all state park campgrounds; they are allowed only in the American Legion, Pachaug and Salt Rock state forest campgrounds, but not on rustic cabin sites.
- Statewide exceptions statewide rule
- Pets prohibited year-round at Dinosaur State Park and in the formal gardens and beach at Harkness Memorial State Park.
Are dogs allowed at Black Rock State Park?
Pets on a leash are permitted in most Connecticut state parks and forests, but not in buildings, swimming areas or state park campgrounds. Individual parks can post stricter rules — check signage on arrival.
Rules verified July 2026 via portal.ct.gov. More: Connecticut state parks guide · Dog rules in all 50 states compared
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