- Category: Water Feature
- Type: Island
- Latitude/Longitude: 51°52'12"N 5°14'23"W
- Eastings/Northings: 177050, 224022
- OS Grid: SM770240
- Mapcode Local: GBR C6.SBYH
- Mapcode Global: VH0TM.4857
Location and coordinates are for the approximate centre of Carreg y Barcud within this administrative area.
Geographic features and populated places may cross administrative borders.