If you come by car, park in front of the viaduct entrance (there are a few spaces on Rue de Verdun) or in the small car park in front of the primary school on Rue Antoine Eyraud.
(S/E) Walk down Rue de Verdun for about 300 metres, then turn right and climb the Esses du sentier de la soie (sign explaining the history of silk spinning on the climb). Turn left onto Rue de l'Ancienne Poste and walk for about 250 metres.
(1) Leave the street via a small staircase leading up to the Pélussin retirement home. The path joins Rue du Pilat at the foot of the retirement home. Continue along this street to the right.
(2) Turn right onto Rue Benay after the pond and public toilets, going up towards the Maison du Parc du Pilat. Here you will have a beautiful view of the pond and the Château de Virieu.
Continue along Rue Benay until you reach the RD7, then take a first turn right then left and continue towards Le Truchet.
(3) About 100 metres after this crossroads, you can admire an old square chimney, which was used to operate a gallic acid factory in the 19th century (information panel on site).
Follow the road, keeping to the right, cross the hamlet of Le Truchet and then start the climb up Soyère.
About 100 metres further on, leave the road and take a path on the right for about 250 metres.
(4) You will come to a crossroads marked with an iron cross. Turn left ("Pelussin 1 - sentier du Priel").
Enter the hamlet of Soyère and continue to follow the marked path (yellow/white) to reach the RD63.
(5) After crossing the RD63, take Chemin de l'Ermont opposite, then continue to follow the marked path that climbs into the woods.
Continue along the marked trail to the hamlet of Priel. The trail joins the RD63, then after a left turn (wash house), it dips to the left. Descend the trail.
(6) Cross the Scie stream (climbing rock with equipped belays).
The path crosses a second branch of the stream, then enters the woods, remaining level for a while. It comes out onto a small road in the hamlet of Corbery. Follow this road for about 200m.
(7) Return to the marked trail, which dips to the right of a bend in the road and follows the woods again, remaining level.
Cross a road and continue along the path opposite. After a right-hand bend, the path leads to the small road called Les Brondelles (hiking sign). Follow the road to the left towards "Mas de la Brondelle".
(8) When the road begins to curve to the left, turn right onto the path. You will come out at Mas de la Brondelle. Go around it on the right and rejoin the road on the left.
(9) At a T-junction, take the sheltered path that leads opposite you. Follow it along the hillside to a small road that runs alongside an old building.
(10). Continue straight ahead on this road, then leave it after about 50 metres via a path that dips to the right.
This narrow, steep path leads to a bend in the RD19. Follow the RD19 to the right (be careful! there is little room for pedestrians on this road!) for about 250 metres.
Leave it for a path that descends to the left into the valley (tarmac road and "give way" sign).
Follow this path down to the bottom of the valley, which leads to the Pont road. Turn left for about 50 metres, then turn right (signposted "les rivières": yellow and white markings) onto Chemin du Moulinage.
Follow it to the next crossroads where a footbridge allows you to cross the Ruisseau de la Scie stream. Here you can admire an old silk mill.
(11) Once you have crossed the footbridge, follow the path on your right, which runs alongside the stream, then climbs uphill and passes under the large viaduct (information sign on site).
Finally, join Rue du Régrillon and turn left to return to Rue de Verdun and the end of this walk (S/E).
. Then, a route with more downhill sections. That said, the route is pleasant and includes few sections on tarmac roads. Be careful between points 5 and 6 at Priel, where the path is blocked several times by barbed wire with no possibility of going around it
.