- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°2'5"N 5°40'48"W
- Eastings/Northings: 136574, 21454
- OS Grid: SW365214
- Mapcode Local: GBR DXCL.F15
- Mapcode Global: VH05T.HDK5
Location and coordinates are for the approximate centre of Gannel Rock within this administrative area.
Geographic features and populated places may cross administrative borders.