- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°13'0"N 5°31'14"W
- Eastings/Northings: 148947, 41144
- OS Grid: SW489411
- Mapcode Local: GBR DXR3.G2X
- Mapcode Global: VH12D.8TC3
Location and coordinates are for the approximate centre of Polgassick Rock within this administrative area.
Geographic features and populated places may cross administrative borders.