- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°26'15"N 7°15'36"W
- Eastings/Northings: 84493, 850795
- OS Grid: NF844507
- Mapcode Local: GBR 89G2.3CM
- Mapcode Global: WGW44.GB05
Location and coordinates are for the approximate centre of Collam within this administrative area.
Geographic features and populated places may cross administrative borders.