Hydrological Unit: Saw Mill River-Hudson River
| HUC | Name |
|---|---|
| 020301010401 | Sparta Brook-Hudson River |
| 020301010402 | Pocantico River |
| 020301010403 | Saw Mill River |
| 020301010404 | Sparkill Creek-Hudson River |
| 020301010405 | East River-Hudson River |
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