 In the west , NY 164 splits off from NY 311 a short distance east of I @-@ 84 . It crosses under the Metro North tracks three times , including two one @-@ lane <unk> with limited sight to the other side . It passes along the northern base of a small mountain and turns slightly southward . The highway turns due eastward and intersects with County Route 64 in the hamlet of <unk> . Just to the north is Mandel Pond , and the route makes a series of erratic turns around small mountains , passing south of Cornwall Hill as it does so . NY 164 turns south @-@ southeast and ends at NY 22 in Patterson , east of the East Branch Croton River . 
