- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°21'52"N 3°45'23"W
- Eastings/Northings: 280500, 275500
- OS Grid: SN805755
- Mapcode Local: GBR 96.S1RW
- Mapcode Global: VH5C5.TTZR
Location and coordinates are for the approximate centre of Llyn Isaf within this administrative area.
Geographic features and populated places may cross administrative borders.