- Category: Water Feature
- Type: Group of Islands
- Latitude/Longitude: 53°25'20"N 4°36'26"W
- Eastings/Northings: 226838, 394902
- OS Grid: SH268949
- Mapcode Local: GBR HM0N.D7T
- Mapcode Global: WH41X.677N
Location and coordinates are for the approximate centre of Ynysoedd y Moelrhoniaid within this administrative area.
Geographic features and populated places may cross administrative borders.