- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°56'24"N 3°44'6"W
- Eastings/Northings: 283500, 339500
- OS Grid: SH835395
- Mapcode Local: GBR 66.LZ1G
- Mapcode Global: WH66X.LCM9
Location and coordinates are for the approximate centre of Afon Tryweryn within this administrative area.
Geographic features and populated places may cross administrative borders.