- Category: Water Feature
- Type: Wetland
- Latitude/Longitude: 50°6'0"N 5°5'53"W
- Eastings/Northings: 178528, 26811
- OS Grid: SW785268
- Mapcode Local: GBR ZC.LV99
- Mapcode Global: FRA 086R.9MC
Location and coordinates are for the approximate centre of Mawnan Shear within this administrative area.
Geographic features and populated places may cross administrative borders.