- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 51°36'47"N 4°2'38"W
- Eastings/Northings: 258562, 192448
- OS Grid: SS585924
- Mapcode Local: GBR GW.D9CL
- Mapcode Global: VH4K7.VQD8
Location and coordinates are for the approximate centre of Pwll Mawr within this administrative area.
Geographic features and populated places may cross administrative borders.