- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 52°17'10"N 3°46'36"W
- Eastings/Northings: 278894, 266823
- OS Grid: SN788668
- Mapcode Local: GBR 95.Y2QG
- Mapcode Global: VH5CK.HS5S
Location and coordinates are for the approximate centre of Llyn Bach within this administrative area.
Geographic features and populated places may cross administrative borders.