- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°29'50"N 3°52'46"W
- Eastings/Northings: 272500, 290500
- OS Grid: SN725905
- Mapcode Local: GBR 91.HMG5
- Mapcode Global: VH4F2.PHW9
Location and coordinates are for the approximate centre of Llyn Nantycagal within this administrative area.
Geographic features and populated places may cross administrative borders.