- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 53°6'35"N 4°8'45"W
- Eastings/Northings: 256457, 359110
- OS Grid: SH564591
- Mapcode Local: GBR 5P.81CJ
- Mapcode Global: WH54T.9309
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.