- Category: Water Feature
- Type: Island
- Latitude/Longitude: 49°56'55"N 6°21'50"W
- Eastings/Northings: 87042, 14519
- OS Grid: SV870145
- Mapcode Local: GBR BXNT.KQ7
- Mapcode Global: VGYBX.MKW5
Location and coordinates are for the approximate centre of Trueboy's Rocks within this administrative area.
Geographic features and populated places may cross administrative borders.