- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 53°4'13"N 4°10'10"W
- Eastings/Northings: 254730, 354776
- OS Grid: SH547547
- Mapcode Local: GBR 5N.BMKL
- Mapcode Global: WH54Z.X2LZ
Location and coordinates are for the approximate centre of Cwm Planwydd within this administrative area.
Geographic features and populated places may cross administrative borders.