- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 52°25'24"N 3°53'47"W
- Eastings/Northings: 271136, 282289
- OS Grid: SN711822
- Mapcode Local: GBR 90.NH7Y
- Mapcode Global: VH4FG.DCX2
Location and coordinates are for the approximate centre of Pen y Graig-Ddu within this administrative area.
Geographic features and populated places may cross administrative borders.