Its north side is dense forest with stone outcrops, and rising elevation into the hills.

The section of road provides access to Brookwood Farm, like the reservation administered by the Massachusetts Department of Conservation and Recreation (DCR).

[2] Hillside Street is the major east-west roadway through the western portion of the park, and is where most of its administrative functions are located.

Its first major junction is with the second segment of Blue Hill River Road, which exits to the south, just west of Houghton's Pond.

From its northern junction with Hillside Street, Blue Hill River Road runs south, bordering the reservation to the east and private lands on the west.

[2] Unquity Road extends north from its junction with Hillside Street and Chickatawbut Road in the north-central section of the park, running in a curvilinear manner very roughly parallel to Pine Tree Brook, for 2.28 miles (3.67 km) until it ends at a fourway junction with Canton Street (east-west) and the Blue Hills Parkway (north).