- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 53°4'42"N 4°5'2"W
- Eastings/Northings: 260500, 355500
- OS Grid: SH605555
- Mapcode Local: GBR 5R.B4FL
- Mapcode Global: WH54V.7WJC
Location and coordinates are for the approximate centre of Llyn Du'r Arddu within this administrative area.
Geographic features and populated places may cross administrative borders.