- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 50°21'17"N 4°53'43"W
- Eastings/Northings: 194140, 54548
- OS Grid: SW941545
- Mapcode Local: GBR ZQ.ZMF0
- Mapcode Global: FRA 08M3.BPM
Location and coordinates are for the approximate centre of Trethosa within this administrative area.
Geographic features and populated places may cross administrative borders.