- Category: Water Feature
- Type: Island
- Latitude/Longitude: 59°58'0"N 1°20'39"W
- Eastings/Northings: 436715, 1120380
- OS Grid: HU367203
- Mapcode Local: GBR R21D.6QL
- Mapcode Global: XHD42.WRX7
Location and coordinates are for the approximate centre of Grey Stack within this administrative area.
Geographic features and populated places may cross administrative borders.