Le Traillou is a trail running and walking event in Saint-Rome-de-Tarn, a village in Aveyron, southern France. It takes place in winter, around late January or early February, offering short off-road distances: an 11 km walk, a 12 km discovery trail, and a 25 km short trail.
The routes follow nature and forest paths near Saint-Rome-de-Tarn, using the Aveyron countryside as the main setting. Participants can complete the 25 km race solo or as a relay. The start list includes walkers, newer trail runners, solo racers, and teams sharing the longer course. The event has introduced new circuits, maintaining the local-course feel while providing returning participants with different routes.