La Vallon Trail is a small trail race held at the COSEC gymnasium on Rue du Docteur Schweitzer in Avallon, Yonne department, Burgundy. Carto organizes it in the Avallonais region, and the race takes place in early January. The primary options are short off-road routes: a 10 km course with 350 m of elevation gain and a 19 km course with 720 m of elevation gain.
The field is limited to 200 runners per main distance, making it a compact local event. The 19 km starts first, followed by the 10 km. Entry fees are lower than many trail races, with different prices for each distance. Age limits designate the longer route as an adult-and-older-junior race, while the 10 km is open to slightly younger runners. A Prevention Health Course option is available for runners without a license or medical certificate.