Hydrological Unit: Upper Wallkill River
| HUC | Name |
|---|---|
| 020200070101 | Lake Mohawk-Wallkill River |
| 020200070102 | Papakating Creek |
| 020200070103 | Beaver Run-Wallkill River |
| 020200070104 | Quarryville Brook-Wallkill River |
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