- Category: Water Feature
- Type: Island
- Latitude/Longitude: 59°57'17"N 1°21'25"W
- Eastings/Northings: 436014, 1119060
- OS Grid: HU360190
- Mapcode Local: GBR R20F.6VR
- Mapcode Global: XHD48.Q1RN
Location and coordinates are for the approximate centre of Grey Stacks within this administrative area.
Geographic features and populated places may cross administrative borders.