- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 51°39'42"N 3°7'18"W
- Eastings/Northings: 322500, 196500
- OS Grid: ST225965
- Mapcode Local: GBR J0.6HFV
- Mapcode Global: VH6DG.THYB
Location and coordinates are for the approximate centre of Twyn-y-gnol within this administrative area.
Geographic features and populated places may cross administrative borders.