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Parking is available in the car parks in the streets around Bullion church or in a small car park below. Access via the A10, exit "Dourdan".
Blue and white signposts
(S) From the church, turn right (south-east) onto the D132 towards Rochefort-en-Yvelines. Stay on this road with pavements for about 500 metres. After crossing a stream, turn left onto Chemin du Pipeu. At the next fork, take the right-hand street. At the next intersection, turn right again and follow a path into the woods.
(1) At the next crossroads, turn left and take the bridge over the old Paris-Chartres railway line via Gallardon (note that nature has reclaimed the site). At the end of the bridge, take the path opposite, which quickly turns left. After a right-hand bend, stay on the main path which climbs into the forest and then crosses a flat area, ignoring any tracks leading off to the left or right. The path then turns left and then right, descending in a southerly direction. At a fork at the bottom of the descent, take the path on the right. Go through a forest gate to reach the D988 road.
No signposts
(2) Cross the road (be careful, this road is very busy) and continue opposite on the small C3 road towards La Bâte. At thefirst intersection, turn right onto a smaller road that slopes slightly downhill. Enter Bourgneuf, cross the village on this small road, with the Aulne river on your left, and rejoin the D988.
(3) Cross the road (be careful) and follow it to the left for about 200 metres (the right-hand side is wider than the left). After crossing a stream, turn right onto the first small road, opposite the entrance to a stud farm. Pass under a bridge over the old railway line. Cross the D149 (be careful) and continue towards Moûtiers between fields and woods.
(4) When the road begins to curve to the right, leave it and continue along a forest path slightly to the left, passing a forest barrier (fire brigade access). Ignore a path on the left and, further on, pass another forest barrier.
Red and white markings
(5) Then follow the Chemin de la Haye de Rochefort with theGR®1on your right. Ignore two small streets on your left and reach a crossroads in the hamlet of Moûtiers (bus shelter opposite).
Yellow markings
(6) Continue straight ahead towards the Chapelle Sainte-Anne (leave theGR®1trail on your left). At the next crossroads, continue straight ahead and you will see the chapel on your right. Continue in the same direction until you reach the Fontaine Sainte-Anne fountain and its wash house.
(7) Continue north, pass a sign for "Moûtiers", cross a stream and take a path that leads into the woods. At a T-junction, continue to the right and follow a fence on your left. At a fork, take the right-hand path and climb steeply.
No signposts
(8) At a crossroads at the top of the hill, take the grassy path opposite, which is not very clear at first (ignore the yellow arrow indicating a left turn). After a few dozen metres, walk along a large meadow on your right. At the next T-junction, turn right and walk between two meadow fences. You will come out onto the D61. Follow it to the right (note the sculptures in the meadow on your left) and enter the hamlet of Les Carneaux.
(9) At the T-junction, turn left towards the Ferme des Carneaux. Pass the farm and continue along the small road. Pass the Moulin de Béchereau and continue slightly uphill along the road. At the entrance to the Ronqueux Departmental Forest, turn right onto a path (no entry for motor vehicles). At the fork that appears immediately, turn right and stay on this main path.
Blue and white signposting
(10) At an intersection, continue straight ahead (south-east) and ignore a path on the left (not shown on the map). Turn right, continue south and note the presence of a pond on your right (not accessible). The path becomes a street and, at the next intersection, turn right. Make a left turn, cross a stream and pass in front of the Lavoir des Valentins. Continue straight ahead on the street of the same name towards the church in plain view and you will quickly return to the starting point (S/E).
Visorando Member
Easy 
