The New York State Canal System is a successor to the Erie Canal and other canals within New York. The 525-mile (845 km) system is composed of the Erie Canal, the Oswego Canal, the Cayuga–Seneca Canal, and the Champlain Canal. In 2014 the entire system was listed as a national historic district on the National Register of Historic Places, and in 2016 it was designated a National Historic Landmark.