![[clickable map of Upper Potomac River tributary basin]](uppotwshedmap2.gif)
| Number | Watershed Name |
|---|---|
| 1 | Upper North Branch Potomac |
| 2 | Savage River |
| 3 | Georges Creek |
| 4 | Wills Creek |
| 5 | Evitts Creek |
| 6 | Lower North Branch Potomac |
| 7 | Town Creek |
| 8 | Potomac River (Allegany County) |
| 9 | 15 Mile Creek |
| 10 | Sideling Hill Creek |
| 11 | Little Tonoloway Creek |
| 12 | Tonoloway Creek |
| 13 | Potomac River (Washington County) |
| 14 | Little Conococheague Creek |
| 15 | Conococheague Creek |
| 16 | Marsh Run |
| 17 | Antietam Creek |
| 18 | Catoctin Creek |
| 19 | Potomac River (Frederick County) |
| 20 | Upper Monocacy River |
| 21 | Big Pipe Creek |
| 22 | Lower Monocacy River |
| 23 | Licking Creek |
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