- Category: Water Feature
- Type: Estuary
- Latitude/Longitude: 56°18'7"N 6°21'59"W
- Eastings/Northings: 129996, 720746
- OS Grid: NM299207
- Mapcode Local: GBR BDN1.YH6
- Mapcode Global: WGYD8.5VMP
Location and coordinates are for the approximate centre of An Caolas within this administrative area.
Geographic features and populated places may cross administrative borders.