The Vuelta al Aneto is a 55 km trail race held in Benasque, Pyrenees. It follows a mountain loop, not a road course, with 3,700 m of elevation gain.
Runners begin and end in Benasque, completing a circuit around the Aneto region. The highest point is Coll de Salenques, at 2,808 m, requiring strong climbing ability and familiarity with high mountain terrain.