- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°33'25"N 7°12'2"W
- Eastings/Northings: 89084, 863816
- OS Grid: NF890638
- Mapcode Local: GBR 88MR.6NJ
- Mapcode Global: WGW3L.C9CZ
Location and coordinates are for the approximate centre of Treanaigh within this administrative area.
Geographic features and populated places may cross administrative borders.