- Category: Populated Place
- Type: Village
- Latitude/Longitude: 50°19'15"N 5°10'34"W
- Eastings/Northings: 174006, 51611
- OS Grid: SW740516
- Mapcode Local: GBR Z5.VZBX
- Mapcode Global: FRA 0815.WTP
Location and coordinates are for the approximate centre of Trevellas within this administrative area.
Geographic features and populated places may cross administrative borders.