Country:
City:
Departure from Poteau de la Poterie, on the D132 road between Bullion and Saint-Arnoult-en-Yvelines. Parking spaces are available on both sides of the road (please do not block the forest paths).
Orange signposting
(S/E) Head west-northwest on Route Robert Joly (sign on the signpost).
No signposts
(1) At the first intersection (forest plot numbers 24-15), turn left onto a grassy path in a fern-covered undergrowth. After a tiny bump, turn right along the path. Keep to the left, passing a first pond and then a second smaller one. Turn right again along the path and keep to the left, passing a third pond. Continue north-northeast through the ferns and birch trees.
Orange markings
(2) At the crossroads, turn left (west-northwest) and follow plots nos. 17 and then 16. At the next crossroads, continue straight ahead under the pine trees.
(3) At the next crossroads (beautiful oak trees), turn right (north-east) onto Route du Parc de la Louche (sign). Climb slightly between a birch wood on your left and a pine forest on your right. After a flat section, the slope becomes steeper, between oak and chestnut trees. At the top of the hill, continue straight ahead on a path and follow the fence of a plot of land undergoing regeneration on your right. Descend and reach a crossroads (pond on the left).
Red and white markings
(4) Turn right and follow theGR®1. Climb up with the fence of a private property on your left. Note a few numbered sandstone markers on the edge of the path. Descend and reach a crossroads in more open terrain (Poteau Sainte-Scariberge on the map but there is no signpost on site).
(5) Continue straight ahead (east-southeast) and pass at the foot of a large double-trunked oak tree. Descend and then turn left (east) onto the path. Stay on the main path and ignore a few vague paths branching off to the sides. Go through a forest gate, continue in the same direction and, after a few metres, ignore the path coming from the right (no signpost here). When a path comes from the left (plots no. 24-21), continue straight ahead. You will come to another crossroads (no. 24-21 here too), near the D132 road.
No signposts
(6) Leave theGR® trail to the right towards the D132 and turn left at an acute angle. At the fork that immediately appears (at the foot of the tree on the left with a red and white cross), leave the grassy path that heads north and turn right (east-northeast) onto a narrow, inconspicuous path (not shown on the IGN map). Follow this path winding between the birch trees. When you reach a fence on your left, keep it on your left: you will come to a path marked on the map but which, contrary to what is shown, does not lead to the D132. Cross a stream and continue north-east between a fence on your left and a broken fence on your right.
Yellow markings
(7) At the next crossroads, turn right at an acute angle. Head south on a slight downhill slope. Leave the forest, cross a stream and rejoin the tarmac road with the Fontaine Sainte-Anne on your left.
(8) Go through a forest gate and continue south on Rue de la Chapelle Sainte-Anne, ignoring the side streets.
Red and white markings
(9) At the junction with the D132, take Chemin de la Haye de Rochefort (dead end) opposite and follow theGR®1again. At the end of the tarmac road, turn right. At the fork that follows immediately, take the left-hand path (the wider one) and follow plot no. 27 on your left. Turn right along the path and head south-west through the fern undergrowth. At the Jumelles crossroads (sign), continue straight ahead, west-south-west, between the pine trees, birches and heather. After a slight incline, keep left alongside a cleared plot of land. Go downhill, ignore a path on the right, continue on the sandy path and reach a crossroads (large oak trees in the middle).
Orange markings
(10) At the crossroads, leave theGR® straight ahead and turn right up Route Robert Joly (green sign on the left side of the crossroads). At the next crossroads (numbered sandstone marker), continue straight ahead (north-west). At the Carrefour de Bullion (no. 24-02), continue straight ahead and walk alongside a few small ponds on your left. Ignore the paths on either side, cross a stream, go through a forest gate and rejoin the D132 road and the Poteau de la Poterie (S/E).
Visorando Member
Easy 
