- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 52°45'38"N 3°43'30"W
- Eastings/Northings: 283692, 319510
- OS Grid: SH836195
- Mapcode Local: GBR 67.Z1MG
- Mapcode Global: WH67P.RWC1
Location and coordinates are for the approximate centre of Llyn Bach within this administrative area.
Geographic features and populated places may cross administrative borders.