Oct 2026: A fenced section of the park with a lake is closed to the public. Deer hunting is allowed in parts of the park during hunting seasons, so wear blaze orange in fall and winter.
Pigeon Swamp State Park At A Glance...
- The swamp was once a major nesting site for passenger pigeons, a bird that is now extinct.
- It is a U.S. National Natural Landmark, designated in December 1976.
- Work on the Great Ditch began in 1780 to drain the swamp for farmland, and the state kept the ditch up into the mid-1800s.
- Todays Sunrise: , Sunset:
- New Jersey Gateway Region Middlesex County
About Pigeon Swamp State Park
Pigeon Swamp State Park is an undeveloped park of about 1,078 acres in South Brunswick, split by Deans Rhode Hall Road. The trails run through upland hardwood forest, a lowland swamp forest of sweetgum, red maple, pin oak and black gum, open meadows and a few open ponds. There is nothing here but the woods and a small parking lot.
Kestrels and red-tailed hawks have been seen over the open meadows, and white-tailed deer live in the woods. In spring the vernal pools fill with amphibians, which makes it a good place to come back to through the seasons. Expect a natural setting rather than a groomed park, with wet ground in places.
The swamp is a U.S. National Natural Landmark, designated in 1976, and sits in the Lawrence Brook watershed. It is managed by the New Jersey Division of Parks and Forestry.
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Activities:
- Hiking
- Hunting
- Jogging / Running
- Walking
Amenities:- Parking Lot(s)
Park Type:- State Parks
- Historic Area
Rules/Regulations:- Must be Leashed
Contact / Location
A Brief History
The swamp has held people's attention for a long time. It was once a major nesting site for passenger pigeons, a bird now extinct. Ownership passed to John Wetheril in 1761, and in 1780 the Great Ditch was begun to drain the swamp for farmland. The state maintained the ditch until the mid-1800s.
In 1945 a sand company dredged part of the site near I-95, which left a lake that is now fenced off. By 1973 the wetland was still unprotected, and efforts to make it a state park began in 1974. It became a National Natural Landmark in December 1976.
Trail & Path Info
The state says visitors are welcome to hike the trails, which pass through hardwood forest, open meadows and ponds. The road divides the park, with the parking lot on one side and more woods across the road. No trail names, loop lengths or official trail map were found, so check the state's area map before you go.
Tips and Tricks
Wear shoes that can get wet, since this is a swamp, and bring everything you need because there are no facilities beyond the parking lot.
Parking
A small parking lot is on Deans Rhode Hall Road. The state asks visitors to park only in designated areas and not to drive past the parking area.
Directions
The park is on Deans Rhode Hall Road (Middlesex County Route 610) in South Brunswick.
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Nearby Places
Also in South Brunswick, Davidsons Mill Pond Park is another South Brunswick park with its own page here. In Plainsboro, Plainsboro Preserve is the next preserve over in Plainsboro.
Here are 10 places near Pigeon Swamp State Park
- Pigeon Swamp State Park (~0 miles)
- Davidsons Mill Pond Park (~2 miles)
- E.A.R.T.H. Center (in Davidsons Mill Pond Park) (~2 miles)
- Von Thun's Country Farm Market (~2 miles)
- Giamarese Farm & Orchards (~4 miles)
- Animal Haven at Thompson Park (Middlesex County) (~4 miles)
- Barclay's Tree Farm (~4 miles)
- Halters Cycles (Old Location) (~4 miles)
- Thompson Park Dog Area (Middlesex County) (~4 miles)
- Woodlot Park (~4 miles)
- Thompson Park (Middlesex County) (~5 miles)
- Plainsboro Preserve (~5 miles)

Dayton, New Jersey 08810