- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°13'35"N 4°48'46"W
- Eastings/Northings: 199468, 40065
- OS Grid: SW994400
- Mapcode Local: GBR ZW.6YZ1
- Mapcode Global: FRA 08TF.DT8
Location and coordinates are for the approximate centre of Long Rock within this administrative area.
Geographic features and populated places may cross administrative borders.