- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°58'46"N 3°29'0"W
- Eastings/Northings: 300500, 343500
- OS Grid: SJ005435
- Mapcode Local: GBR 6K.J6BL
- Mapcode Global: WH66V.GCGM
Location and coordinates are for the approximate centre of Merddwr within this administrative area.
Geographic features and populated places may cross administrative borders.