- Category: Water Feature
- Type: Island
- Latitude/Longitude: 53°13'17"N 4°31'46"W
- Eastings/Northings: 231209, 372381
- OS Grid: SH312723
- Mapcode Local: GBR 55.143J
- Mapcode Global: WH42X.D973
Location and coordinates are for the approximate centre of Maen Mawr within this administrative area.
Geographic features and populated places may cross administrative borders.