- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 51°38'1"N 3°40'3"W
- Eastings/Northings: 284688, 194098
- OS Grid: SS846940
- Mapcode Local: GBR H8.8B5Z
- Mapcode Global: VH5GX.C6ZC
Location and coordinates are for the approximate centre of Foel y Dyffryn within this administrative area.
Geographic features and populated places may cross administrative borders.