- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°5'52"N 3°56'0"W
- Eastings/Northings: 270642, 357393
- OS Grid: SH706573
- Mapcode Local: GBR 5Y.8YSX
- Mapcode Global: WH54X.KD4C
Location and coordinates are for the approximate centre of Llynnau Mymbyr within this administrative area.
Geographic features and populated places may cross administrative borders.