- Category: Water Feature
- Type: Island
- Latitude/Longitude: 58°30'45"N 6°16'54"W
- Eastings/Northings: 150729, 966219
- OS Grid: NB507662
- Mapcode Local: GBR B6W7.7D4
- Mapcode Global: WGY1N.G9WH
Location and coordinates are for the approximate centre of Oca Sgeir within this administrative area.
Geographic features and populated places may cross administrative borders.