- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°13'22"N 4°17'18"W
- Eastings/Northings: 243773, 260777
- OS Grid: SN437607
- Mapcode Local: GBR DH.20WW
- Mapcode Global: VH3JR.MD46
Location and coordinates are for the approximate centre of Cwm Gilfach within this administrative area.
Geographic features and populated places may cross administrative borders.