Hydrological Unit: South Branch Patapsco River
| HUC | Name |
|---|---|
| 020600031001 | Gillis Falls |
| 020600031002 | Hay Meadow Branch-South Branch Patapsco River |
| 020600031003 | Piney Run |
| 020600031004 | Piney Branch-South Branch Patapsco River |
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- New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.