- Category: Water Feature
- Type: Island
- Latitude/Longitude: 55°37'38"N 1°35'54"W
- Eastings/Northings: 425383, 637170
- OS Grid: NU253371
- Mapcode Local: GBR K38C.QJ
- Mapcode Global: WHC0G.FT18
Location and coordinates are for the approximate centre of Crumstone within this administrative area.
Geographic features and populated places may cross administrative borders.