- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°7'51"N 3°44'49"W
- Eastings/Northings: 280500, 249500
- OS Grid: SN805495
- Mapcode Local: GBR Y6.7WPC
- Mapcode Global: VH5DC.0PCV
Location and coordinates are for the approximate centre of Llyn Brianne Resr within this administrative area.
Geographic features and populated places may cross administrative borders.