- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°4'10"N 4°2'40"W
- Eastings/Northings: 263110, 354439
- OS Grid: SH631544
- Mapcode Local: GBR 5T.BMYY
- Mapcode Global: WH551.V35L
Location and coordinates are for the approximate centre of Llyn Llydaw within this administrative area.
Geographic features and populated places may cross administrative borders.