- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 52°57'11"N 4°22'46"W
- Eastings/Northings: 240246, 342178
- OS Grid: SH402421
- Mapcode Local: GBR 5C.KYDV
- Mapcode Global: WH44B.P1RD
Location and coordinates are for the approximate centre of Llyn Glasfryn within this administrative area.
Geographic features and populated places may cross administrative borders.