Park in the car park of the Milhars village hall.
Much of the route (the outward leg) is unmarked and requires a map and the use of a GPS.
The section marked in yellow, at the end of the route, forms part of the circular loop known as the Bonnan Valley.
Yellow markings – Vallée de Bonnan
(S/E) On the D600, with your back to the village hall, head left towards Place de la Mairie. In front of the community café, cross the road and head up to the right. This uphill street passes two wayside crosses. At the second white wrought-iron cross in Bournazel, carry on straight ahead, following the sign for the Bonnan Discovery Trail. After the bend, the road approaches the stream.
No signposting
(1) Stay on the road to cross the stream. Walk uphill alongside the stream. At the three-way junction, veer left. At the next junction, take a sharp left-hand bend. The road gives way to a dirt track at Darrasse. Pass a dovecote on your left.
(2) At the first junction, turn left and walk past the relay pylon. Keep heading generally south-west, ignoring the small paths branching off to the right and left. The path, which is initially narrow near the pylon, quickly widens into a stony track. The track you are following is the QRGA Inter-municipal Path. It climbs steadily, with a few flat sections to catch your breath, through varied countryside as it crosses the Pech Mas plateau, then narrows towards its final section before reaching a wide, unpaved forest road.
(3) At the white forest road, make a zigzag turn first left then right to follow a wide dirt track.
(4) Take the left-hand path signposted ‘Sentier Intercommunal’. This leads to a wide white track; follow it to the left. After about fifty metres, you’ll join theGRP® Cordes-Penne.
(5) Take theGRP® to the left. This is a wide forestry track winding through oak woodland. Walk for about 800 m until you reach a cairn marking a narrow, barely visible path branching off to the left.
(6) At the cairn, follow the small grassy path for a return trip to the Dolmen d’Orsayrolles.
(7) Retrace your steps back to the cairn.
(6) Take the track on the left again. When you come to a path coming from the right, carry on straight ahead. Pass Les Clavilières and reach a junction (elevation 426).
(8) Turn left to reach the centre of Roussayrolles. A visit to the 13th-century church in Roussayrolles is a must.
(9) . On leaving the cemetery, turn left. Take the first dirt track on the right. At the T-junction, turn left. The track runs alongside the Touron farm, where cows graze freely. Do not forget to close the pasture gates behind you.
(10) At the road, cross over and continue straight ahead. 100 metres further on, at the Fork in the road, keep right onto the tarmac track. Pass a tree that has swallowed up a small signpost (on your left).
(11) Turn right onto the dirt track. Follow the yellow-marked path, which winds its way through the woods and passes a wooded pasture. Walk alongside the cattle enclosure, then follow the path until you reach the Ruisseau de Bonnan again. Cross the ford just before a Fork in the road.
(12) At the fork in the road, take the left-hand branch. At this point, the IGN map is incorrect. Ford the stream three times over a distance of 300 metres. Halfway along, you’ll come across the ruins of the Madeleine sarcophagus. After thethird ford, follow the stream on your left until you reach a bridge.
Yellow markings – Bonnan Valley
(13) Cross the bridge and continue to the right towards the petrified waterfall. In summer, the waterfall is dry, but in winter the spring flows abundantly. It is possible to walk right up to its source.
(14) Tuff waterfall. Continue along the stream until you reach the next bridge and cross it. Note, as you pass, just before the bend towards the bridge, a huge, centuries-old elm tree on the right.
(15) At the T-junction, turn left to rejoin the fork you took on the way out.
(1) Continue along the road leading uphill opposite and retrace the section you took at the start in the opposite direction to return to the car park (S/E).