- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°7'27"N 4°0'14"W
- Eastings/Northings: 265994, 360456
- OS Grid: SH659604
- Mapcode Local: GBR 5V.75V7
- Mapcode Global: WH54P.GQJM
Location and coordinates are for the approximate centre of Llyn Ogwen within this administrative area.
Geographic features and populated places may cross administrative borders.