Mamaroneck River

The Mamaroneck River is a freshwater stream located in Southern Westchester County, New York. The river forms in White Plains and Harrison and flows 7.3 miles (11.7 km) south through Mamaroneck Town and Village, where it empties into Mamaroneck Harbor and Long Island Sound. The name of the river comes from a local native American word meaning, "where the fresh water meets the salt water." The river flows into Long Island Sound.
The watershed of the Mamaroneck River is 17.4 sq mi (45 km2). It is dominated by suburban residential neighborhoods and commercial and retail tracts. High density re...