Park in the car park at the bottom of the village of Rosans on the D25.
(S/E) Walk back up towards the village and turn right to go round the church. Then turn left, then right, and head due north to reach the start of the Chemin du Facteur.
(1) Follow this path straight on until you reach the Baumelle forest road at the 970m mark.
(2) Cross the track and continue along the path opposite. Cross the forest track twice and carry on to an altitude of approximately 1,100m, where the path begins to descend.
(3) Leave the Chemin du Facteur and turn right onto a well-trodden track running along the edge of the woodland. Reach the 1,214-metre mark, then, after passing a small rocky outcrop, descend into the woods, still following the edge of the woodland. You will then come to a signposted path.
(4) Turn right onto this path and head due south to reach the Serre du Suquet.
(5) Continue in the same direction and you will soon rejoin the Baumelle forest road.
(6) Turn left onto this road and, after a wide hairpin bend, join theGR®®91(marked in white and red). Turn left onto theGR®® and follow it to the Col de l’Archimbaou.
(7) Turn right, go through the forest gate and follow the track due south for about 500 metres.
(8) Take the path through the woodland running alongside the Serre de l’Aigle. You’ll come to a forest track at a hairpin bend; follow it to the right until the next hairpin bend. Here you’ll find a signpost for Rosans / Serre de l’Aigle.
(9) Leave the track and take the yellow-marked path. You will come to a junction.
(10) Please note: there is a change to the original marked route shown on the map. Follow the new markings to the right, running alongside a fence.
(11) End of the new route. Turn right to follow the track through the marl and then the tarmac road to reach the car park (S/E).