- Category: Water Feature
- Type: Island
- Latitude/Longitude: 55°6'22"N 4°58'23"W
- Eastings/Northings: 210428, 583137
- OS Grid: NX104831
- Mapcode Local: GBR GH36.LQR
- Mapcode Global: WH2R8.KXZ9
Location and coordinates are for the approximate centre of Balnowlart Holm within this administrative area.
Geographic features and populated places may cross administrative borders.