- Category: Water Feature
- Type: Island
- Latitude/Longitude: 55°33'24"N 4°40'30"W
- Eastings/Northings: 231369, 632475
- OS Grid: NS313324
- Mapcode Local: GBR 38.QSB5
- Mapcode Global: WH2P9.5L0J
Location and coordinates are for the approximate centre of Mill Rock within this administrative area.
Geographic features and populated places may cross administrative borders.