growth, bearing little resemblance to its original design. A thousand feet () to the north, after a small interchange with NY 141, a three-level stack interchange allows access to the Saw Mill River Parkway northbound (and southbound from the southbound lanes). North of the interchange power lines and Saw Mill River Road (New York State Route 9A or NY 9A and NY 100) on the west parallel the parkway past undeveloped Graham Hills County Park. The next exit, at Bedford Road (NY 117), serves Pleasantville to the east. Just north of it, a short fork allows traffic to divert to NY 9A and 100, which split away toward Ossining. The Taconic continues north through a minimally developed area of low hills, past another exit serving Pleasantville, and then across another town line into New Castle. Route 100 returns to parallel the highway on the west again, then joins NY 133 at the next exit, serving Ossining and Millwood. About a half mile () north of that exit, northbound traffic can also exit, and southbound traffic enters, at Pines Bridge Road. The roadways grow far apart over the next mile before coming together again at the NY 134 exit, as Turkey Mountain, one of the Manhattan Hills, looms ahead. The Taconic then enters Yorktown, the last town along the Taconic in Westchester County, and split again until they are apart, with neighborhoods and houses between them, to the two bridges over New Croton Reservoir, part of the New York City water supply system. Once on the other side, in the town of Yorktown, they converge again to their previous width. The next exit, at Underhill Avenue, provides access to downtown Yorktown and the reservoir. Past the Baldwin Road exit a half mile () north of Underhill, the Taconic curves westward along the south side of Mohansic Lake. When the road returns to a northerly course, an exit allows entrance to Franklin D. Roosevelt State Park. It is followed by the Crompond Road (U.S. Route 202 or US 202 and NY 35) exit, which serves Peekskill to the west as well as Yorktown. Just beyond it Bear Mountain Parkway, a legacy of the Taconic's original planned route and purpose, leaves to the west as the road drops into a wide valley carved by a tributary of the Hudson, the first place where the road begins to respond to the increasing relief of