- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 52°57'40"N 3°59'54"W
- Eastings/Northings: 265870, 342304
- OS Grid: SH658423
- Mapcode Local: GBR 5W.KF72
- Mapcode Global: WH55G.KT7N
Location and coordinates are for the approximate centre of Llyn y Garnedd-uchaf within this administrative area.
Geographic features and populated places may cross administrative borders.