- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°15'34"N 4°32'26"W
- Eastings/Northings: 230636, 376636
- OS Grid: SH306766
- Mapcode Local: GBR HN52.LX6
- Mapcode Global: WH42Q.7B2G
Location and coordinates are for the approximate centre of Llyn Cerrig-bâch within this administrative area.
Geographic features and populated places may cross administrative borders.