- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 51°51'7"N 3°51'5"W
- Eastings/Northings: 272580, 218674
- OS Grid: SN725186
- Mapcode Local: GBR Y2.TFBJ
- Mapcode Global: VH4J6.6Q81
Location and coordinates are for the approximate centre of Pen Rhiw-Ddu within this administrative area.
Geographic features and populated places may cross administrative borders.