The start is at the chapel, below the village of Sainte-Agnès. There is parking available right next to it.
(S/E) Follow the road westwards towards the Col des Banquettes. After about twenty metres, take a path on the left.
(1) At marker 457, turn right towards the Cime du Baudon. Head up, generally heading north-west.
(2) At Pas de la Piastre (marker 475 is missing), turn left to continue along the ridge to the summit (panoramic view).
(3) Descend, continuing along the ridge towards the west.
(4) At marker 556 (not seen during my visit, elevation 1195), turn left (south). Descend a scree slope to the south-east, then turn sharply right (south-west).
(5) At marker 555, turn sharply right and follow the direction of the Col de Saint-Bernard.
(6) At marker 554, continue straight on (west) towards the Col de Saint-Bernard. When the path turns left to join a road, leave it and continue straight on towards an antenna. At the foot of this, veer left to reach the Col du Saint-Bernard (marker 552).
(7) Then turn right (north) towards the Pas d'Ongrand.
(8) After a short stretch on the road, rejoin a dirt track at marker 595, continuing towards the Pas d'Ongrand. You’ll come out onto a road; follow it to the right for about fifty metres and take a path on the left.
(9) At Pas d'Ongrand, cross the bridge and begin your ascent towards Col du Farguet.
(10) Cross the Route de l'Escarène to rejoin the path climbing to the pass (north-west then north).
(11) At the Col du Farguet (marker 116), head east towards Ségra and its pass. Go round Mont Méras and Mont Avellan to the north.
(12) At Ségra, continue south-east towards the Col de Ségra and Mont Ours. Climb a short series of hairpin bends to reach marker 126.
(13) At the Col de Ségra (marker 125), take the path heading south-east which climbs to the Baisse du Loup and Mont Ours.
(14) Then turn left and you will soon reach marker 127.
(15) Turn right towards the summit of Mont Ours.
(16) Pass the antennas and the fort to reach the gate at the entrance to the building.
(17) At marker 129, head south towards the Col du Verrous. Descend a somewhat tricky scree slope; take care.
(18) At marker 472, turn left (north-east) onto the track towards the Col de Verroux.
(19) At marker 469, continue straight on (south-east) to reach the Col de Verroux (marker 446).
(20) Take thefirst path on the right (west) towards the Ravin de Verroux and Sainte-Agnès.
(21) Descend in hairpin bends along the ravine. Pass markers 445 and 444, keeping in the direction of Peyre Grosse (south then south-east).
(22) At marker 443, follow a track to the right towards Sainte-Agnès via Peyre Grosse.
(23) You’ll come out at a hairpin bend (marker 442) and take the left-hand branch, downhill, towards Sainte-Agnès.
(24) At the hamlet of Peyre Grosse, cross a stream and continue south-east.
(25) Join the Col des Banquettes road and follow it to the left as far as Sainte-Agnès (S/E).