- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°18'55"N 4°4'57"W
- Eastings/Northings: 251811, 48232
- OS Grid: SX518482
- Mapcode Local: GBR NZ.YF53
- Mapcode Global: FRA 28B6.H6S
Location and coordinates are for the approximate centre of Blackstone Rocks within this administrative area.
Geographic features and populated places may cross administrative borders.