(S/E) From the car park by the pond, walk up Rue de l’Étang for 190 metres, then turn left onto Rue des Darbonnières. At the junction, turn right onto Rue de Génévréant, which continues to the left as Chemin de Poleymieux for 650 metres; ignore the paths to the right and left.
(1) Turn right onto Chemin de Chasselay and follow it for 750 metres.
(2) When you reach a fork in the road, take the right-hand hairpin bend and continue for 900 metres.
(3) Turn right at the hairpin bend onto the path closed to vehicles, for 1,200 metres.
When you reach the entrance to the quarry, go down the road to the Chemin du Robiat.
Take this track to the left; as you go, you’ll see a drystone shelter on your right.
(4) At the sign for Poleymieux-au-Mont-d’Or, turn onto the path on the right until you reach Chemin de la Maby. Continue until you reach a drystone shelter.
(5) Follow Chemin de la Maby to the right for 350 metres until you reach a track; turn right onto it at an acute angle. On your left is a very beautiful drystone shelter, and there are two more on the right.
(6) At the T-junction, turn right between two fields and carry on until you reach the Route des Gambins. Turn right for about 80 metres and, at the bend, take the path branching off to the right.
(7) Turn right onto the mountain bike track through the woodland; this is a very steep track, which can be difficult in wet weather. You’ll come to a small forest road; cross it and continue straight ahead through the woodland, cross another track and carry on under the fir trees. You’ll reach the junction (roundabout) of the D92 and the Route de Poleymieux. Cross over and head towards Limonest for about 80 metres.
(8) Take the path branching off to the right, which goes round the speed camera and Fort Mont Verdun.
(9) Turn onto the path on the left, walk for about 200 metres and take the path on the right towards the Gîte de la Glande; pass the Gîte de la Glande and head towards the Route de la Glande. Reach the road and follow it to the left for about 300 metres.
(10) Pass a lime kiln and continue along this road. After the bend to the left, take the path leading down to the right.
Follow the path, keeping to the right, until you reach the ruined farm at Borde.
(11) Turn left onto the geological trail towards Chasselay, for 1.8 km.
When you reach the Montée du Plantin, turn right onto Rue de l’Étang to reach the car park (S/E).