- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°39'51"N 3°16'6"W
- Eastings/Northings: 310440, 85729
- OS Grid: SY104857
- Mapcode Local: GBR P7.SYRN
- Mapcode Global: FRA 471B.2FF
Location and coordinates are for the approximate centre of Big Picket Rock within this administrative area.
Geographic features and populated places may cross administrative borders.