- Category: Water Feature
- Type: Island
- Latitude/Longitude: 58°17'3"N 6°55'11"W
- Eastings/Northings: 111755, 943377
- OS Grid: NB117433
- Mapcode Local: GBR 969T.WT3
- Mapcode Global: WGX1C.P12L
Location and coordinates are for the approximate centre of Seanna Chnoc within this administrative area.
Geographic features and populated places may cross administrative borders.