South Mountain Road is a winding, two-lane historic road on the northern border of New City, New York, a hamlet in Rockland County. Historic High Tor State Park is an attraction on South Mountain Road. Also on the road is the Henry Varnum Poor House, listed on the National Register of Historic Places in 2007. South Mountain Road's western terminus is New York State Route 45 in Pomona. The eastern terminus is in New City at Haverstraw Road.