- Category: Water Feature
- Type: Island
- Latitude/Longitude: 51°58'28"N 5°5'4"W
- Eastings/Northings: 188230, 235192
- OS Grid: SM882351
- Mapcode Local: GBR CF.KMG5
- Mapcode Global: VH1QK.TM8K
Location and coordinates are for the approximate centre of Carreg Golchfa within this administrative area.
Geographic features and populated places may cross administrative borders.