- Category: Water Feature
- Type: Island
- Latitude/Longitude: 60°27'33"N 1°29'11"W
- Eastings/Northings: 428340, 1175170
- OS Grid: HU283751
- Mapcode Local: GBR Q1P3.1JN
- Mapcode Global: XHD1Q.1C9L
Location and coordinates are for the approximate centre of Stack of Niddister within this administrative area.
Geographic features and populated places may cross administrative borders.