- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 53°10'58"N 3°57'58"W
- Eastings/Northings: 268698, 366901
- OS Grid: SH686669
- Mapcode Local: GBR 5X.3H0J
- Mapcode Global: WH54J.18J5
Location and coordinates are for the approximate centre of Carnedd Gwenllian within this administrative area.
Geographic features and populated places may cross administrative borders.