- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 55°29'40"N 3°10'57"W
- Eastings/Northings: 325383, 622957
- OS Grid: NT253229
- Mapcode Local: GBR 646X.S4
- Mapcode Global: WH6VY.25R0
Location and coordinates are for the approximate centre of St Mary's Loch within this administrative area.
Geographic features and populated places may cross administrative borders.