- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°7'13"N 3°36'58"W
- Eastings/Northings: 291939, 359345
- OS Grid: SH919593
- Mapcode Local: GBR 6C.7J2G
- Mapcode Global: WH660.FT7S
Location and coordinates are for the approximate centre of Llyn y Foel-frech within this administrative area.
Geographic features and populated places may cross administrative borders.