- Category: Water Feature
- Type: Island
- Latitude/Longitude: 51°35'22"N 2°42'0"W
- Eastings/Northings: 351591, 188092
- OS Grid: ST515880
- Mapcode Local: GBR JL.C1HR
- Mapcode Global: VH880.49WR
Location and coordinates are for the approximate centre of Long Rock within this administrative area.
Geographic features and populated places may cross administrative borders.