- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°39'59"N 4°54'42"W
- Eastings/Northings: 198727, 200418
- OS Grid: SM987004
- Mapcode Local: GBR G8.X2B2
- Mapcode Global: VH1S6.TC4W
Location and coordinates are for the approximate centre of Underdown Bottom within this administrative area.
Geographic features and populated places may cross administrative borders.