- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 52°59'38"N 3°51'52"W
- Eastings/Northings: 274952, 345709
- OS Grid: SH749457
- Mapcode Local: GBR 61.HHQ1
- Mapcode Global: WH55J.L0YG
Location and coordinates are for the approximate centre of Llyn y Frithgraig within this administrative area.
Geographic features and populated places may cross administrative borders.