- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°58'59"N 3°52'14"W
- Eastings/Northings: 274500, 344500
- OS Grid: SH745445
- Mapcode Local: GBR 61.J274
- Mapcode Global: WH55J.H8ZX
Location and coordinates are for the approximate centre of Llynnau Gamallt within this administrative area.
Geographic features and populated places may cross administrative borders.