- Category: Water Feature
- Type: Island
- Latitude/Longitude: 60°27'25"N 1°30'6"W
- Eastings/Northings: 427505, 1174910
- OS Grid: HU275749
- Mapcode Local: GBR Q1N3.6KP
- Mapcode Global: XHD1P.TFZC
Location and coordinates are for the approximate centre of Gro Stack within this administrative area.
Geographic features and populated places may cross administrative borders.