- Category: Geographic Feature
- Type: Other Coastal Landform
- Latitude/Longitude: 49°57'19"N 6°20'22"W
- Eastings/Northings: 88839, 15179
- OS Grid: SV888151
- Mapcode Local: GBR BXQS.YRV
- Mapcode Global: VGYBY.2C9Z
Location and coordinates are for the approximate centre of Big Rock within this administrative area.
Geographic features and populated places may cross administrative borders.