- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 51°45'45"N 4°15'16"W
- Eastings/Northings: 244500, 209500
- OS Grid: SN445095
- Mapcode Local: GBR GQ.R1SZ
- Mapcode Global: VH3LX.6YLQ
Location and coordinates are for the approximate centre of Mynydd y Garreg within this administrative area.
Geographic features and populated places may cross administrative borders.