- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 53°2'51"N 3°46'8"W
- Eastings/Northings: 281500, 351500
- OS Grid: SH815515
- Mapcode Local: GBR 65.D2WK
- Mapcode Global: WH66B.2NFH
Location and coordinates are for the approximate centre of Hwylfa within this administrative area.
Geographic features and populated places may cross administrative borders.