- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 51°29'35"N 0°17'31"W
- Eastings/Northings: 518666, 178518
- OS Grid: TQ186785
- Mapcode Local: GBR 7Y.P1F
- Mapcode Global: VHGQW.WQFP
Location and coordinates are for the approximate centre of Potomac within this administrative area.
Geographic features and populated places may cross administrative borders.