The Saw Mill River Parkway crosses northeast through Graham Hills County Park, paralleling the Harlem Line and NY 141 through Mount Pleasant. The parkway passes west of the former Thornwood station before turning northwest and away from NY 141. Just after the turn, exit 27 comes at-grade, a junction with Marble Avenue, which connects to NY 141. The parkway runs along a short westbound stretch, crossing into the village of Pleasantville. Going northward in Pleasantville, exit 28 forks off northbound only to Bedford Road, which connects to downtown Pleasantville. Proceeding southbound, exit 29 accesses NY 117 (Pleasantville Road). The parkway turns northeast and enters exit 30 for Grant Street near the Pleasantville Metro-North station.