This area of town is also mountainous and rugged, with the border descending along a northwesterly line to the narrow Woodbury Creek valley, where NY 32 and the New York State Thruway enter the town. At the valley's mouth, where Woodbury Creek drains into Moodna Creek, is the small hamlet of Mountainville, with its own fire district and ZIP Code. It gets its name from Schunemunk Mountain, where the town line climbs the northern end of Schunemunk, reaching the town's highest elevation at at the tripoint with Woodbury and Blooming Grove.