- Category: Water Feature
- Type: Island
- Latitude/Longitude: 58°54'45"N 2°47'11"W
- Eastings/Northings: 354803, 1003060
- OS Grid: HY548030
- Mapcode Local: GBR M5H5.D8C
- Mapcode Global: WH7CM.57CY
Location and coordinates are for the approximate centre of Gersam within this administrative area.
Geographic features and populated places may cross administrative borders.