- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°7'28"N 4°2'50"W
- Eastings/Northings: 263103, 360564
- OS Grid: SH631605
- Mapcode Local: GBR 5T.71BT
- Mapcode Global: WH54N.SQWG
Location and coordinates are for the approximate centre of Llyn Cywion within this administrative area.
Geographic features and populated places may cross administrative borders.