- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 51°12'49"N 4°3'48"W
- Eastings/Northings: 255971, 148084
- OS Grid: SS559480
- Mapcode Local: GBR KQ.3Y40
- Mapcode Global: VH4M5.JR4C
Location and coordinates are for the approximate centre of Small Mouth within this administrative area.
Geographic features and populated places may cross administrative borders.