- Category: Water Feature
- Type: Island
- Latitude/Longitude: 52°56'18"N 4°32'33"W
- Eastings/Northings: 229221, 340943
- OS Grid: SH292409
- Mapcode Local: GBR 55.LT3B
- Mapcode Global: WH448.6D1K
Location and coordinates are for the approximate centre of Cerrig Bwich Glas within this administrative area.
Geographic features and populated places may cross administrative borders.