Between unspoilt nature and rural heritage, the Valserine valley shelters several authentic hamlets where lives were once governed by waterways and agriculture.
From Chézery-Forens, the trail passes through a number of peaceful, verdant villages and hamlets, through forests, meadows and small streams to the remains of the 18th-century Moulin Thomas. Nearby, the footbridge over the Valserine bears witness to the historic floods that shaped the landscape. Take a detour to discover the blessed fountain, a place of pilgrimage and devotion dedicated to the Saint Roland, who according to legend caused a spring to flow whose water was said to cure headaches, stomach aches and eye diseases.
Phone : 04 50 28 09 16
Website : https://www.paysdegex-montsjura.com
From 01/04 to 30/11 daily.
Forest location
In the country
River 5 km away
Not suitable for strollers
Stone
Hard coating (tar, cement, flooring)
Ground
Topo guides references :
Hiking in Pays de Gex and the Haute Chaine du Jura: on sale at Pays de Gex tourist agencies: 9€.
Map references :
3328OT - CRÊT DE LA NEIGE
Office de Tourisme du Pays de Gex - 26/02/2026
www.paysdegex-montsjura.com
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▶ Before setting off:
Check the general and local weather forecast to ensure there will be no precipitation.
Find out about the approach walk, the altitude of the route, the walking time, and possible escape routes (IGN map, GPS, guidebook, etc.).
Assess the possible risks by consulting mountain professionals, mountain huts, and lodges.
Inform a friend or family member of your destination and contact them again in case of any changes: departure and return times, number of participants with each person's telephone number, vehicle(s), parking.
Avoid setting off alone. Use equipment that is suitable for the activity, properly adjusted and in good condition, including a head torch, a complete first aid kit, a survival blanket, etc.
In case of an emergency, call 112 (European emergency number).
(1)From the village center of Chézery-Forens, in front of the town hall, head south along rue de l'Abbaye. You'll pass several of the village shops.
(2) Take the Pont de Forens to the right, then first right. The white path runs alongside the Valserine river for about 1.5 km, before heading back up to Noirecombe via the Chemin de Godet. It passes a farm, skirts the edge of the forest, then turns left after 50m. It then joins the road at Noirecombe.
(3) Take the road to the right for 200m. At the intersection, take the right-hand path towards Le Combet.
(4) Pass a house and continue straight ahead on the white Chemin de la Mierette. The profile is slightly downhill, and the path leads to a ruin at Fond des Prés.
(5) From here, the small path becomes a wider footpath which enters the forest. Follow this path for about 250m before reaching a new intersection.
(6) Leave the Pont du Diable and continue to the right, towards La Mierette. The path runs along the edge of the forest, around the Mierette house, then down to Moulin Thomas. The slope quickly steepens and the path starts winding. It then follows the banks of the Valserine for around 800m, before reaching the ruins of the Moulin Thomas.
(7) At the mill, cross the wooden footbridge to the other side of the river. From here, follow the signs for Fontaine Bénite. The path follows the riverbank for about 700m. At the next intersection, turn left to reach this charming spot.
(8) The path passes between two houses, then climbs through pastures. For the first 100m, follow a wide track, which then continues to the left to become a footpath. This soon reaches the Platelets farmhouse.
(9) Go around the second house and turn sharp right onto the D991. Cross this road with care and take the path opposite. This soon reaches the village of Le Rosset via the impasse de la Colonie.
(10) Cross the hamlet and keep to the right. The path skirts a field bordered by a hedge, before joining a tarmac road. Continue along this road.
(11) At the first intersection turn left onto a white track. Pass the Grande Bossonaz farm and follow the path along the field to Bellaigue.
(12) Finally, turn right and stay on the white track, which leads straight back to Chézery-Forens.
Yes