This is a marathon in the heart of the Hautes Baronnies mountains. You will climb gradually to reach the highest point of the Col d'Izon at almost 1400 m altitude, and then enjoy 10 kilometers of ridges on the Bouvrèges and Croc mountains. You will need to keep a little more energy since the second part of the course will not be of any rest with a succession of high climbs of which towards the old fort of Mévouillon.

Vigilance: this circuit crosses breeding areas. There may be a presence of dog protection against wolves (see recommendations). This circuit may also be temporarily closed to meet the needs of breeders.