- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 52°55'6"N 3°19'3"W
- Eastings/Northings: 311500, 336500
- OS Grid: SJ115365
- Mapcode Local: GBR 6R.N4LJ
- Mapcode Global: WH788.0WFX
Location and coordinates are for the approximate centre of Pen-plaenau within this administrative area.
Geographic features and populated places may cross administrative borders.