- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°38'56"N 3°35'37"W
- Eastings/Northings: 289825, 195662
- OS Grid: SS898956
- Mapcode Local: GBR HC.7BQP
- Mapcode Global: VH5GR.NTFB
Location and coordinates are for the approximate centre of Cwm Dyrys within this administrative area.
Geographic features and populated places may cross administrative borders.