- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°3'52"N 3°57'50"W
- Eastings/Northings: 268488, 353733
- OS Grid: SH684537
- Mapcode Local: GBR 5X.BX4W
- Mapcode Global: WH553.27MF
Location and coordinates are for the approximate centre of Llynau Diwaunydd within this administrative area.
Geographic features and populated places may cross administrative borders.