- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 52°39'39"N 3°46'5"W
- Eastings/Northings: 280500, 308500
- OS Grid: SH805085
- Mapcode Local: GBR 95.5JVL
- Mapcode Global: WH688.2CVV
Location and coordinates are for the approximate centre of Mynydd Du within this administrative area.
Geographic features and populated places may cross administrative borders.