- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°37'4"N 3°41'28"W
- Eastings/Northings: 283003, 192368
- OS Grid: SS830923
- Mapcode Local: GBR H7.9B73
- Mapcode Global: VH5GW.YLXL
Location and coordinates are for the approximate centre of Cwm Ton-Hir within this administrative area.
Geographic features and populated places may cross administrative borders.