- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 51°46'9"N 3°10'56"W
- Eastings/Northings: 318500, 208500
- OS Grid: SO185085
- Mapcode Local: GBR YY.ZR7F
- Mapcode Global: VH6CV.SSDL
Location and coordinates are for the approximate centre of Mynydd-Carn-y-cefn within this administrative area.
Geographic features and populated places may cross administrative borders.