- Category: Water Feature
- Type: Island
- Latitude/Longitude: 58°14'5"N 6°49'50"W
- Eastings/Northings: 116570, 937519
- OS Grid: NB165375
- Mapcode Local: GBR 96JY.VC2
- Mapcode Global: WGX1M.18JW
Location and coordinates are for the approximate centre of Sgeir a' Mharich within this administrative area.
Geographic features and populated places may cross administrative borders.