Park at the Pont Roch car park.
(S/E) From the car park, take the road leading up towards Brunville, running alongside the Drôme.
(1) Before passing under the railway line, turn right. Follow the path. Pass under the railway line.
(2) Just before a footbridge, turn right. At a three-way junction, veer left. Return to the tarmac road (elevation 52) and go straight on. Pass through the hamlet of Brunville, ignoring a road on the left.
(3) At the three-way junction on leaving the hamlet, follow the road to the left. Pass a wash house then turn left for about a hundred metres.
(4) Take thefirst path on the right, marked by a post in the middle prohibiting access to cars and motorbikes, to join the path running alongside the N13. Join a crossroad.
(5) Turn left, cross the bridge over the N13 and continue straight ahead for about 350 m.
(6) Take a path on the left. Join the N13, turn left and follow this road again. At the end of the path, cross the bridge over the N13 again.
(5) Continue straight on for 350 m.
(7) At a place called La Crotte, turn right. After about 150 m, leave the road and take a path on the left.
(8) You will come out onto a small road; follow it to the left. The road bends left (marker 62) and leads to a junction.
(9) Turn right, pass in front of Château de Cambre and continue straight on to the Subles housing estate.
(10) Before the high-voltage power line, turn right towards the top of Brunville. Turn right onto the track and ignore a road on the right (elevation 67).
(11) Follow the path down to the left. Cross the two branches of the Drôme and head back up to Ranchy.
(12) Turn right, go under the railway bridge and follow the D169 to the Pont Roch car park (S/E).