- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°15'42"N 4°24'12"W
- Eastings/Northings: 239787, 376558
- OS Grid: SH397765
- Mapcode Local: GBR HNH2.HPQ
- Mapcode Global: WH42S.B8CS
Location and coordinates are for the approximate centre of Llyn Hendref within this administrative area.
Geographic features and populated places may cross administrative borders.