- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°44'13"N 3°35'37"W
- Eastings/Northings: 290053, 205461
- OS Grid: SN900054
- Mapcode Local: GBR HC.1QT5
- Mapcode Global: VH5GC.NLJS
Location and coordinates are for the approximate centre of Cwm Ty'rmynydd within this administrative area.
Geographic features and populated places may cross administrative borders.