Trail du Buis 2026

Trail du Buis takes place in La Buisse, a village in Isère within the Auvergne-Rhône-Alpes region, held around mid-October. This trail-running event offers multiple distances: a 10 km race, the traditional 21 km TDB distance, an approximately 8.7 km Nordic walking route, and a 30 km race providing a longer mountain option. Over 700 participants attend, giving it the feel of a well-attended local event rather than a small gathering. The 21 km course ascends for a significant portion towards the Grand Ratz site before transitioning to singletrack, forest paths, country roads, and technical sections. It features roughly 1110 m of elevation gain. The 10 km course has about 400 m of elevation gain, and the 30 km course reaches approximately 1300 m. Runners can complete the 21 km solo or in pairs, with past events seeing about thirty duos. Nordic walkers also participate, with their route subject to adjustments on the Combes section due to conditions. Trail du Buis is included in the Pays Voironnais Trail Series and is now in its second decade.