From the church car park, head towards La Taillat. At the signpost, take the grassy path towards Les Quatre Sapins to reach the crossroads in Saint-Joseph. The route then takes you on a lovely loop through the Vallin forest, passing by the Vallin ponds. The loop takes you back to Saint-Joseph. From there, go back to the sign for Les Quatre Sapins, then head towards Dessus Mirieu, going past Ravoux pond before following the path upstream along the Gadizieu stream. Continue through Dessus Mirieu and join the D520 road at the sign for "Le Rapoux". Keep left and walk along the road (be careful) for 50m. On your left, take the Chemin de Brumière as far as the "Le Bessay" sign. Keep going until you reach the sign for "Croix des Poulets", then follow the road back to Torchefelon.
Marking : Follow the yellow markings along the route.
Equipments : Car park,

Delicate passages : Remember to bring clothing and equipment appropriate for your ability level, the route, and the weather conditions. Be careful during the 50m stretch on the D520 road.

Admission fee : Free access.

Opening : All year round. Subject to favorable weather.

Area : Vals du Dauphiné