In 2018, the religious order of Sisters of Mercy sold 229 acres of open space to the Town of Cumberland. 18 acres are to be developed into athletic fields and the remaining 211 acres will remain as undeveloped open space managed Blackstone Valley.

The yellow-blazed Mercy Loop is relatively easy to walk with gently rolling trails about four feet wide. A vista overlooking the forest and reservoir is at the southeast tip of the trail loop. 

The blue-blazed Ridge Trail (moderate) is a more challenging walk with several steep ridges. The Ridge Trail has vistas in the southeast and northeast sections. Some of the Ridge Trail and most of the red-blazed connecting trails are wide farmers' cart paths.

Difficulty: Moderate
Trailhead:  There is access to the yellow trailhead/parking lot 200 yards off route 121 and Sumner Brown road and there are just under 6 miles of trails. Trailhead is across Sumner Brown Rd. from the lot.
Parking: 10-space lot, no overnight parking