- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 52°49'41"N 3°13'7"W
- Eastings/Northings: 317979, 326328
- OS Grid: SJ179263
- Mapcode Local: GBR 6W.TYD6
- Mapcode Global: WH78W.J5GN
Location and coordinates are for the approximate centre of Llyn y Briw within this administrative area.
Geographic features and populated places may cross administrative borders.