- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 50°9'18"N 5°40'44"W
- Eastings/Northings: 137306, 34815
- OS Grid: SW373348
- Mapcode Local: GBR DXC8.FJC
- Mapcode Global: VH057.JC2G
Location and coordinates are for the approximate centre of Trewellard Bottoms within this administrative area.
Geographic features and populated places may cross administrative borders.