- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 52°54'18"N 3°18'56"W
- Eastings/Northings: 311615, 335008
- OS Grid: SJ116350
- Mapcode Local: GBR 6R.P53C
- Mapcode Global: WH78G.17FN
Location and coordinates are for the approximate centre of Pen-yr-Eryr within this administrative area.
Geographic features and populated places may cross administrative borders.