- Category: Water Feature
- Type: Island
- Latitude/Longitude: 58°5'51"N 7°7'24"W
- Eastings/Northings: 98247, 923538
- OS Grid: NA982235
- Mapcode Local: GBR 87SB.5Y9
- Mapcode Global: WGW0X.KQ2N
Location and coordinates are for the approximate centre of Sgeir Lachdunn within this administrative area.
Geographic features and populated places may cross administrative borders.