- Category: Water Feature
- Type: Island
- Latitude/Longitude: 49°57'26"N 5°13'13"W
- Eastings/Northings: 169107, 11320
- OS Grid: SW691113
- Mapcode Local: GBR Z3.YZQ7
- Mapcode Global: VH13X.GBJL
Location and coordinates are for the approximate centre of Mulvin within this administrative area.
Geographic features and populated places may cross administrative borders.