- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 53°10'45"N 3°58'8"W
- Eastings/Northings: 268500, 366500
- OS Grid: SH685665
- Mapcode Local: GBR 5X.3NBM
- Mapcode Global: WH54J.0C70
Location and coordinates are for the approximate centre of Carnedd Gwenllian within this administrative area.
Geographic features and populated places may cross administrative borders.