- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 51°48'9"N 3°24'55"W
- Eastings/Northings: 302500, 212500
- OS Grid: SO025125
- Mapcode Local: GBR YN.XMFD
- Mapcode Global: VH6CJ.RY8H
Location and coordinates are for the approximate centre of Garn Ddu within this administrative area.
Geographic features and populated places may cross administrative borders.