- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°23'14"N 7°23'1"W
- Eastings/Northings: 76638, 845819
- OS Grid: NF766458
- Mapcode Local: GBR 8956.6Q1
- Mapcode Global: WGV34.KL23
Location and coordinates are for the approximate centre of Chiasmul within this administrative area.
Geographic features and populated places may cross administrative borders.