- Category: Water Feature
- Type: Island
- Latitude/Longitude: 60°34'27"N 1°0'32"W
- Eastings/Northings: 454419, 1188270
- OS Grid: HU544882
- Mapcode Local: GBR R0VS.Q92
- Mapcode Global: XHF82.9H10
Location and coordinates are for the approximate centre of Ern Stack within this administrative area.
Geographic features and populated places may cross administrative borders.