- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°18'20"N 4°15'51"W
- Eastings/Northings: 249223, 381130
- OS Grid: SH492811
- Mapcode Local: GBR HMVY.TND
- Mapcode Global: WH42N.G5MP
Location and coordinates are for the approximate centre of Llyn Cadarn within this administrative area.
Geographic features and populated places may cross administrative borders.