- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 50°16'9"N 5°3'12"W
- Eastings/Northings: 182500, 45500
- OS Grid: SW825455
- Mapcode Local: GBR ZF.X1RV
- Mapcode Global: FRA 089B.32D
Location and coordinates are for the approximate centre of River Allen within this administrative area.
Geographic features and populated places may cross administrative borders.