- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°0'8"N 4°0'20"W
- Eastings/Northings: 265510, 346904
- OS Grid: SH655469
- Mapcode Local: GBR 5V.GZBW
- Mapcode Global: WH558.FSSL
Location and coordinates are for the approximate centre of Llyn Cwm-y-foel within this administrative area.
Geographic features and populated places may cross administrative borders.