The Cross Island Parkway is a parkway in New York City, part of the Belt System running along the perimeter of the boroughs of Queens and Brooklyn. The Cross Island Parkway runs 10.6 miles (17.1 km) from the Whitestone Expressway (Interstate 678 or I-678) in Whitestone past the Throgs Neck Bridge, along and across the border of Queens and Nassau County to meet up with the Southern State Parkway, acting as a sort of separation point which designates the limits of New York City. The road is designated as New York State Route 907A (NY 907A), an unsigned reference route, and bears the honorary name 100th Infantry Division Parkway.