- Category: Water Feature
- Type: Island
- Latitude/Longitude: 60°30'33"N 1°36'29"W
- Eastings/Northings: 421622, 1180700
- OS Grid: HU216807
- Mapcode Local: GBR Q0CY.ZVR
- Mapcode Global: XHD1G.F3YR
Location and coordinates are for the approximate centre of Gill Stack within this administrative area.
Geographic features and populated places may cross administrative borders.