- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 53°6'22"N 4°2'25"W
- Eastings/Northings: 263500, 358500
- OS Grid: SH635585
- Mapcode Local: GBR 5T.88ZC
- Mapcode Global: WH54V.X642
Location and coordinates are for the approximate centre of Llyn y Cwm within this administrative area.
Geographic features and populated places may cross administrative borders.