- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°40'4"N 3°54'6"W
- Eastings/Northings: 271500, 309500
- OS Grid: SH715095
- Mapcode Local: GBR 90.4VCL
- Mapcode Global: WH572.16BJ
Location and coordinates are for the approximate centre of Tal-y-llyn Lake within this administrative area.
Geographic features and populated places may cross administrative borders.