- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°42'37"N 4°9'2"W
- Eastings/Northings: 251500, 203500
- OS Grid: SN515035
- Mapcode Local: GBR GS.SC7D
- Mapcode Global: VH4JT.08JK
Location and coordinates are for the approximate centre of Cwm Lliedi Resr within this administrative area.
Geographic features and populated places may cross administrative borders.