- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 58°31'29"N 4°40'6"W
- Eastings/Northings: 244703, 962738
- OS Grid: NC447627
- Mapcode Local: GBR G6V6.88S
- Mapcode Global: WH26S.8Z4J
Location and coordinates are for the approximate centre of Bàgh Loch Sian within this administrative area.
Geographic features and populated places may cross administrative borders.