- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 50°33'19"N 4°45'40"W
- Eastings/Northings: 204500, 76500
- OS Grid: SX045765
- Mapcode Local: GBR N1.G6T1
- Mapcode Global: FRA 07XL.NWF
Location and coordinates are for the approximate centre of River Allen within this administrative area.
Geographic features and populated places may cross administrative borders.