- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°2'2"N 3°35'55"W
- Eastings/Northings: 290423, 238488
- OS Grid: SN904384
- Mapcode Local: GBR YD.G3YR
- Mapcode Global: VH5F0.K4TN
Location and coordinates are for the approximate centre of Cwm Cyrnog within this administrative area.
Geographic features and populated places may cross administrative borders.