- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°6'19"N 3°59'18"W
- Eastings/Northings: 266985, 358319
- OS Grid: SH669583
- Mapcode Local: GBR 5W.89NS
- Mapcode Global: WH54W.P6YN
Location and coordinates are for the approximate centre of Llyn Caseg-fraith within this administrative area.
Geographic features and populated places may cross administrative borders.