- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 52°53'8"N 4°25'3"W
- Eastings/Northings: 237436, 334771
- OS Grid: SH374347
- Mapcode Local: GBR 5B.Q7C7
- Mapcode Global: WH44J.3QNJ
Location and coordinates are for the approximate centre of Pwll Du within this administrative area.
Geographic features and populated places may cross administrative borders.