Hydrological Unit: Upper South Branch Potomac River
| HUC | Name |
|---|---|
| 020700010301 | Frank Run-South Branch Potomac River |
| 020700010302 | Strait Creek |
| 020700010303 | East Dry Run-South Branch Potomac River |
| 020700010304 | Whitehorn Creek-Thorn Creek |
| 020700010305 | Smith Creek-South Branch Potomac River |
| 020700010306 | Hayes Gap Run-South Branch Potomac River |
| 020700010307 | Reeds Creek |
| 020700010308 | Mill Run-South Branch Potomac River |
| 020700010309 | Briggs Run-South Branch Potomac River |
| 020700010310 | Hoglan Run-South Branch Potomac River |