- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°35'16"N 3°44'1"W
- Eastings/Northings: 279985, 189088
- OS Grid: SS799890
- Mapcode Local: GBR H5.C5KH
- Mapcode Global: VH5H2.7CG4
Location and coordinates are for the approximate centre of Cwm Lladdfa within this administrative area.
Geographic features and populated places may cross administrative borders.