- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°41'41"N 3°54'10"W
- Eastings/Northings: 271500, 312500
- OS Grid: SH715125
- Mapcode Local: GBR 90.37QH
- Mapcode Global: WH56W.0JSC
Location and coordinates are for the approximate centre of Llyn Cau within this administrative area.
Geographic features and populated places may cross administrative borders.