- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°49'34"N 3°38'12"W
- Eastings/Northings: 289812, 326676
- OS Grid: SH898266
- Mapcode Local: GBR 6B.TYXC
- Mapcode Global: WH67K.37G4
Location and coordinates are for the approximate centre of Cwm Cynllwyd within this administrative area.
Geographic features and populated places may cross administrative borders.