- Category: Water Feature
- Type: Island
- Latitude/Longitude: 58°12'40"N 6°17'36"W
- Eastings/Northings: 147903, 932746
- OS Grid: NB479327
- Mapcode Local: GBR B7V0.VD1
- Mapcode Global: WGY30.9W93
Location and coordinates are for the approximate centre of Langaisgeir Mòr within this administrative area.
Geographic features and populated places may cross administrative borders.