- Category: Water Feature
- Type: Island
- Latitude/Longitude: 55°59'2"N 3°14'30"W
- Eastings/Northings: 322615, 677467
- OS Grid: NT226774
- Mapcode Local: GBR 8B2.TF
- Mapcode Global: WH6SD.5VJJ
Location and coordinates are for the approximate centre of Megmillar within this administrative area.
Geographic features and populated places may cross administrative borders.