- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°2'50"N 4°1'21"W
- Eastings/Northings: 264518, 351919
- OS Grid: SH645519
- Mapcode Local: GBR 5V.D1B4
- Mapcode Global: WH552.5NSQ
Location and coordinates are for the approximate centre of Llyn Gwynant within this administrative area.
Geographic features and populated places may cross administrative borders.