Willard Brook State Forest is a public recreation area located in the towns of Ashby and Townsend. The state forest covers more than 2,000 acres of rolling hills, streams, and ponds. It offers a variety of activities, including hiking, biking, fishing, camping, and picnicking. 

Pearl Hill State Park is located within Willard Brook State Forest.

The AllTrails website has a description and map of a hike at Willard Brook State Forest.