- Category: Water Feature
- Type: Island
- Latitude/Longitude: 58°20'54"N 6°11'2"W
- Eastings/Northings: 155279, 947598
- OS Grid: NB552475
- Mapcode Local: GBR C63N.Q5R
- Mapcode Global: WGY2G.ZFCD
Location and coordinates are for the approximate centre of Sgeirean Thealair within this administrative area.
Geographic features and populated places may cross administrative borders.