- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°26'15"N 5°2'54"W
- Eastings/Northings: 183632, 64184
- OS Grid: SW836641
- Mapcode Local: GBR ZF.KH30
- Mapcode Global: FRA 079W.YWG
Location and coordinates are for the approximate centre of Horse Rock within this administrative area.
Geographic features and populated places may cross administrative borders.