- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°56'57"N 3°46'39"W
- Eastings/Northings: 277920, 229371
- OS Grid: SN779293
- Mapcode Local: GBR Y5.M7LG
- Mapcode Global: VH5F9.G8QF
Location and coordinates are for the approximate centre of Cwm Tynewydd within this administrative area.
Geographic features and populated places may cross administrative borders.