- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 52°58'48"N 3°51'58"W
- Eastings/Northings: 274790, 344156
- OS Grid: SH747441
- Mapcode Local: GBR 61.J999
- Mapcode Global: WH55J.LC27
Location and coordinates are for the approximate centre of Llynnau Gamallt within this administrative area.
Geographic features and populated places may cross administrative borders.