- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°42'1"N 4°9'43"W
- Eastings/Northings: 250688, 202408
- OS Grid: SN506024
- Mapcode Local: GBR GS.SVNB
- Mapcode Global: VH3MB.TJ27
Location and coordinates are for the approximate centre of Cwm Ty-Du within this administrative area.
Geographic features and populated places may cross administrative borders.