- Category: Populated Place
- Type: Village
- Latitude/Longitude: 50°31'27"N 5°1'1"W
- Eastings/Northings: 186248, 73737
- OS Grid: SW862737
- Mapcode Local: GBR ZG.Q5B6
- Mapcode Global: FRA 07CP.57V
Location and coordinates are for the approximate centre of Treyarnon within this administrative area.
Geographic features and populated places may cross administrative borders.