Trail des Calès is a trail race held in Millau, Aveyron, southern France. It provides two off-road courses: a 15 km race classified in the 20k category and a 9 km race classified in the 10K category.
The courses follow paths through protected natural areas near Millau, emphasizing trail running over road speed. The event caters to trail runners of various skill levels; the shorter course offers an accessible option for beginners, while the longer course presents a greater challenge. Organizers describe it as a local gathering, with information posted on the Trail des Calès Facebook page.