- Category: Water Feature
- Type: Island
- Latitude/Longitude: 53°14'45"N 4°36'49"W
- Eastings/Northings: 225699, 375290
- OS Grid: SH256752
- Mapcode Local: GBR GNZ3.WXR
- Mapcode Global: WH42P.3N7Z
Location and coordinates are for the approximate centre of Maen yr Esgyll within this administrative area.
Geographic features and populated places may cross administrative borders.