Treaty Rock Park services the Middlebridge Road neighborhood. The park includes a playground, basketball court, open play space, and trail leading to Pettaquamscutt Rock. Views from Pettaquamscutt Rock provide excellent views of the Narrow River valley. A historical marker in the park describes the signing of a treaty by Roger Williams. A stone wall borders the southern boundary of the park.

| Classification: | Neighborhood |
| Size: | 6.23 Acres |