Frederick B. Knapp Town Forest

Mass Audubon's North Hill Marsh Wildlife Sanctuary, Mayflower St, Duxbury, MA 02332, USA

934-1100 ext. 5471

Owned By: Town of Duxbury

These woodlands, situated on a hillside overlooking a large pond and wetlands, are home to Duxbury’s largest trail network.


The Frederick B. Knapp Town Forest is part of Duxbury’s 1,000-acre Eastern Greenbelt. It directly abuts Mass Audubon’s North Hill Marsh Wildlife Sanctuary, as well as the Waiting Hill Preserve and the Round Pond Conservation Area. Within Knapp Forest, you’ll find the Green’s Harbor Path and Kettle Hole Loop trail network, among others.

Trail Description

Primary access to the Knapp Town Forest is at North Hill Marsh on Mayflower Street. The Knapp Trail, blazed in yellow, extends a short distance in one direction from the parking area to Mayflower Street, but much greater distance in the other direction, through the woods the O’Brien Bogs, along the Kettle Hole Loop Trail, and beyond to Harrison and Tremont Streets. The Pond Loop, blazed in blue, extends all the way around North Hill Marsh. A secondary trail, blazed in red, extends from the northern intersection of Green’s Harbor Path and the Kettle Hole Loop, west to the North Hill Marsh trail network. Green-blazed trails in the northwest quadrant link to the Waiting Hill Preserve. Additional unblazed trails lead to the North Hill Golf Course property and Merry Ave.

Additional access to the Knapp Trail is available behind First Parish Church in Duxbury (842 Tremont Street). Follow the stairs, or the trail nearby, to head downhill. Walk past the labyrinth/meditation garden, and continue to the fence that borders Mayflower Cemetery.

Habitats and Wildlife

Pine and oak woodlands along a sloping hillside, with some wetland areas.Birds such as hawks, osprey, herons, ducks, geese and tree swallows are commonly found here. In the spring and summer you may see butterflies, dragonflies and damselflies. For mammals, watch for white-tailed deer, mink, muskrat, opossum, raccoon, chipmunk, squirrel and coyote. Reptile residents include blacksnakes and a variety of turtles (box, painted, spotted, snapping). Amphibians include frogs, toads and salamanders. Some of the floors commonly viewed include mayflowers in April, ladyslippers in May, and sheep laurel in June.

Mass Audubon's North Hill Marsh Wildlife Sanctuary, Mayflower St, Duxbury, MA 02332, USA

Historic Site: No

Park: No

Beach: No

Boat Launch: No

Lifeguards: No

Size: 823 acres

Hours: Dawn to Dusk

Parking: Limited on-site parking at North Hill Marsh. Additional access from Mayflower Street and behind the Duxbury Town Offices.

Cost: Free

Trail Difficulty: Easy, Medium


Kiosk, benches, observation platform, boardwalks. Observation platform off the Pond Loop trail.

Dogs: Dogs must remain on leash or under control. Scoop the poop!

Boat Ramp: No

ADA Access: No

Scenic Views: Yes

Other Things to Do at This Site