- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 51°56'25"N 3°9'28"W
- Eastings/Northings: 320500, 227500
- OS Grid: SO205275
- Mapcode Local: GBR YZ.MZ7C
- Mapcode Global: VH6C3.6HXF
Location and coordinates are for the approximate centre of Mynydd Llysiau within this administrative area.
Geographic features and populated places may cross administrative borders.