Trail de l'Antimoine is a small trail-running event in Rochetrejoux, Vendee, France, typically held in mid-September. Roca'Run organizes it, offering runners distances of 11 km, 16 km, or 21 km. The event also provides walking routes of 8 km, 12 km, and 15 km, ensuring the day caters to participants focused on racing and those seeking a leisurely pace.
The routes follow natural trails near Rochetrejoux, passing by lakes and ponds. Each trail distance consists of a single loop. The 21 km race, the most popular, features approximately 350 m of elevation gain, while the 16 km and 11 km trails each have about 250 m of climbing. Past events have attracted over 100 participants, and the Antimoine event has previously incorporated mountain biking on the same local trail network.