- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°55'5"N 4°6'8"W
- Eastings/Northings: 255500, 226500
- OS Grid: SN555265
- Mapcode Local: GBR DQ.PC1V
- Mapcode Global: VH4HV.V11T
Location and coordinates are for the approximate centre of Afon Sannan within this administrative area.
Geographic features and populated places may cross administrative borders.