- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°59'24"N 3°59'25"W
- Eastings/Northings: 266500, 345500
- OS Grid: SH665455
- Mapcode Local: GBR 5W.HP5X
- Mapcode Global: WH55G.P32H
Location and coordinates are for the approximate centre of Llyn Croesor within this administrative area.
Geographic features and populated places may cross administrative borders.