- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°10'20"N 3°56'38"W
- Eastings/Northings: 270148, 365671
- OS Grid: SH701656
- Mapcode Local: GBR 5Y.42DY
- Mapcode Global: WH54J.DJ2D
Location and coordinates are for the approximate centre of Melynllyn within this administrative area.
Geographic features and populated places may cross administrative borders.