- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°12'50"N 2°3'30"W
- Eastings/Northings: 396568, 813692
- OS Grid: NJ965136
- Mapcode Local: GBR XS.39N1
- Mapcode Global: WH9QC.CY01
Location and coordinates are for the approximate centre of Blackdog Rock within this administrative area.
Geographic features and populated places may cross administrative borders.