- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°57'8"N 3°30'43"W
- Eastings/Northings: 298500, 340500
- OS Grid: SH985405
- Mapcode Local: GBR 6H.L5B4
- Mapcode Global: WH671.02S2
Location and coordinates are for the approximate centre of Llyn Caer-Euni within this administrative area.
Geographic features and populated places may cross administrative borders.