- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 51°28'4"N 3°33'16"W
- Eastings/Northings: 292113, 175475
- OS Grid: SS921754
- Mapcode Local: GBR HF.LNMM
- Mapcode Global: VH5HR.BCPK
Location and coordinates are for the approximate centre of Pwll Betti Siôn within this administrative area.
Geographic features and populated places may cross administrative borders.