About Tidmarsh

Tidmarsh view with egrets

A vast expanse of cold-water streams, ponds, forest, and woodlands, Tidmarsh is a 481-plus acre landscape permanently protected and open for all to enjoy. Once a working cranberry farm, this landscape underwent the largest freshwater ecological restoration ever completed in the Northeast.

Its previous owners, the Schulman Family, along with the Massachusetts Division of Ecological Restoration, U.S. Department of Agriculture’s Natural Resources Conservation Service, and many other organizations, re-created nearly three and a half miles of meandering stream channel, sculpted the land’s surface, and removed nine dams to reconnect the headwaters of Beaver Dam Brook to the ocean for the first time in more than a century.

As a result of the collective actions of the collaborators, this entire landscape is now on a dramatic trajectory of change—a spectacle that will play out for decades, and even centuries, to come.

Walk the trails to learn about the landscape’s transformation and the importance of habitat protection, ecological restoration and climate change response. Coming Soon: Hands-on programs for local school children—future stewards of our environment—will teach the interconnections between land, air, water, and wildlife. And programs will offer innovative ways to integrate science through field-based learning and new technology.  



Trail Mileage

3 miles Details >

Sanctuary Highlights

  • Many thriving habitats including grasslands, Atlantic white cedar swamp, red maple swamp, pine-oak forest, streams, and ponds.
  • River Herring and Muskrat returning to the stream after a long absence.
  • Birds have flocked to this vibrant site, including common species (Red-shouldered Hawks and Northern Harriers) and rarer visitors (King Rails, Blue Grosbeaks, and Caspian Terns).


60 Beaver Dam Rd, Plymouth, MA 02360
Get directions or contact us >


Trails: Open daily, dawn to dusk


Members: Free
Nonmembers: $2 suggested donation

EBT Participants: Free for up to 4 people when you show your EBT card


Get an overview Mass Audubon’s Tidmarsh Wildlife Sanctuary.