- Category: Water Feature
- Type: Wetland
- Latitude/Longitude: 53°35'7"N 0°6'59"E
- Eastings/Northings: 540208, 411964
- OS Grid: TA402119
- Mapcode Local: GBR YV8Z.1F
- Mapcode Global: WHJK0.R4PM
Location and coordinates are for the approximate centre of Old Den within this administrative area.
Geographic features and populated places may cross administrative borders.