- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 53°6'32"N 3°51'40"W
- Eastings/Northings: 275500, 358500
- OS Grid: SH755585
- Mapcode Local: GBR 61.84J5
- Mapcode Global: WH54Y.N3GT
Location and coordinates are for the approximate centre of Llyn Goddionduon within this administrative area.
Geographic features and populated places may cross administrative borders.