- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 52°50'24"N 3°33'20"W
- Eastings/Northings: 295302, 328103
- OS Grid: SH953281
- Mapcode Local: GBR 6G.T0QM
- Mapcode Global: WH67D.BWZ0
Location and coordinates are for the approximate centre of Pen y Cerrig Duon within this administrative area.
Geographic features and populated places may cross administrative borders.