Monrot

Monrot served as the base of the Lys Brigade throughout the partisan war. Its position allowed for control of the valley floor and the ability to spot any approaching troops.
The excursion also provides the opportunity to visit many of the high-altitude villages in the Perloz area – villages that were once inhabited year-round, though many buildings are now abandoned. It is like stepping back into life in the past.
The detour to Monrot crosses steep slopes, and the path is not well marked, so it should only be attempted by experienced hikers.

From the Pont-Saint-Martin motorway exit, turn right towards Turin. At the second roundabout, turn left towards Gressoney.
The road rises for a few hundred metres before turning right onto the Lys Valley road, which is followed until passing the hamlet of Tour d'Hérèraz.
Shortly afterwards, on the left, you’ll find the road that descends (signposted for Chemp). Cross the stream and continue to the hamlet of Chamioux, where the road from Perloz joins. Turn right and, following a series of steep hairpin bends, reach the village of Marine.
Cross through the village and continue to a bend where, on the right, the narrow road leading to Chemp begins. Follow this road until crossing the stream, and just after the start of the road leading to Ruine (closed to traffic), leave the car.

From the car, follow the asphalt road to its end near the little chapel (alternatively, it is possible to take the old mule track, though some sections are partially overgrown).
At the end of the road, take the steep mule track that leads to the hamlet of Badery. Passing through the village, among the upper buildings, you can still see the old school with the inscription "école."
Continue along the steep mule track beyond the village, through chestnut terraces, until reaching a more panoramic area.
Before reaching the houses of Ruine Dessus, take care to follow the path on the right that leads to Monrot. The path crosses very steep slopes, with some sections protected by railings, until reaching the few houses of Monrot, which were the base of the Lys partisan brigade.
After exploring the signs of the resistance, return to the junction and reach the houses of Ruine in a few minutes. Pass just below the village and descend to cross the stream, then climb to the houses of Croux and back onto the asphalt road.
Follow the road to the left (past the last houses, on the right, stands a monumental elm) until the houses of Pessé. Leave the road and descend to the left between the houses to reach the large stone cross and the monumental ash tree.
The mule track continues on level ground until it meets the asphalt road again. Follow it for a short stretch, then leave it and take the beautiful mule track, which brings you back to the road further down. Follow it for a short distance, then take the left-hand mule track, and finally, back on the asphalt road, join the Cammino Balteo, which leads along the Marine irrigation channel to the Glacières mill and the car.