- Category: Water Feature
- Type: Island
- Latitude/Longitude: 52°18'56"N 4°9'4"W
- Eastings/Northings: 253467, 270815
- OS Grid: SN534708
- Mapcode Local: GBR 8P.W6JM
- Mapcode Global: VH4FX.0291
Location and coordinates are for the approximate centre of Carreg Ti-pw within this administrative area.
Geographic features and populated places may cross administrative borders.