- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°49'10"N 3°58'56"W
- Eastings/Northings: 266500, 326500
- OS Grid: SH665265
- Mapcode Local: GBR 5W.VK2F
- Mapcode Global: WH567.SDRC
Location and coordinates are for the approximate centre of Llyn y Bi within this administrative area.
Geographic features and populated places may cross administrative borders.