- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 51°56'38"N 3°9'17"W
- Eastings/Northings: 320720, 227923
- OS Grid: SO207279
- Mapcode Local: GBR F0.ML2T
- Mapcode Global: VH6C3.8DJH
Location and coordinates are for the approximate centre of Mynydd Llysiau within this administrative area.
Geographic features and populated places may cross administrative borders.