- Category: Water Feature
- Type: Island
- Latitude/Longitude: 49°52'58"N 6°20'55"W
- Eastings/Northings: 87729, 7142
- OS Grid: SV877071
- Mapcode Local: GBR BXQZ.SYY
- Mapcode Global: VGYC9.X63M
Location and coordinates are for the approximate centre of Eastern Rock within this administrative area.
Geographic features and populated places may cross administrative borders.