- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 52°28'18"N 3°39'12"W
- Eastings/Northings: 287780, 287277
- OS Grid: SN877872
- Mapcode Local: GBR 9B.K949
- Mapcode Global: VH5BV.M4CC
Location and coordinates are for the approximate centre of Mynydd y Groes within this administrative area.
Geographic features and populated places may cross administrative borders.