- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°22'14"N 4°3'14"W
- Eastings/Northings: 260265, 276721
- OS Grid: SN602767
- Mapcode Local: GBR 8T.RLJC
- Mapcode Global: VH4FK.PN6Z
Location and coordinates are for the approximate centre of Cwm y Gynhen within this administrative area.
Geographic features and populated places may cross administrative borders.