- Category: Water Feature
- Type: Island
- Latitude/Longitude: 55°44'15"N 5°43'16"W
- Eastings/Northings: 166503, 655644
- OS Grid: NR665556
- Mapcode Local: GBR DF8K.061
- Mapcode Global: WH0KR.21XQ
Location and coordinates are for the approximate centre of An Dubh-sgeir within this administrative area.
Geographic features and populated places may cross administrative borders.