County-wide drainage basin boundaries automated (1992) from Westchester County Environmental Planning Atlas Hydrologic Features Map (1:24,000). Updated (2012) to include new sub-basins delineated in the Bronx River Basin by the Center for Watershed Protection (2007-2008).
Compiled at a scale of 1:24,000, this data is intended for general planning purposes only, and may not be appropriate for site specific analysis.
Coordinate System - New York State Plane, FIPS zone: 3101 (Formerly East Zone 4801), Units: Feet, North American Datum 1983. Visit the Westchester County GIS web site to download this data along with additional Westchester County data: http://giswww.westchestergov.com