- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°2'47"N 5°16'43"W
- Eastings/Northings: 165360, 21430
- OS Grid: SW653214
- Mapcode Local: GBR Z1.48D2
- Mapcode Global: VH13H.G353
Location and coordinates are for the approximate centre of Green Rock within this administrative area.
Geographic features and populated places may cross administrative borders.