- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°1'25"N 3°51'45"W
- Eastings/Northings: 275165, 349010
- OS Grid: SH751490
- Mapcode Local: GBR 61.FJ69
- Mapcode Global: WH55B.M8V7
Location and coordinates are for the approximate centre of Llyn y Tomla within this administrative area.
Geographic features and populated places may cross administrative borders.