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Parking: Route de Saint-Fiacre in Auvers-Saint-Georges: Take the N. 20 towards Paris-Étampes, exit Auvers-Saint-Georges between Étrechy and Étampes. At the first roundabout after the exit, turn right towards Auvers. At the roundabout after passing under the N20, continue straight ahead. The car park is 300 metres on the left.
(S/E) Start at the opposite end of the road and follow the fitness trail clockwise, returning to the D148 along the Juine river. Take the road on the left after crossing the bridge. Continue straight ahead until you reach the roundabout.
(1) Turn left towards Janville and Auvers centre. Take the first street on the right, Ruelle aux Anglais, until the next crossroads.
(2) Look for the yellow or blue signposts. Take the yellow signposted path on the left, Chemin de la Roche à Vigne. Cross the Route de Chanteloup and continue straight ahead. (Be careful, as the signpost may make you think you need to turn right). 100 metres further on, follow the yellow signposts on the right, Rue du Bois.
(3) At the next crossroads, turn left onto the paved Chemin des Motillons (yellow signposting not very visible). Follow the yellow signs on Les Motillons to the left, then right onto Rue des Bosquets, then left at the roundabout onto Rue des Écoles. At the end, go around Place du Général Leclerc clockwise to see the church and the entrance to the Gravelle estate.
(4) After the church, continue around the square towards the town hall, then follow the yellow signs to the left onto Rue Fontaine.
(5) Leave thePR® for now, which branches off to the left onto Rue des Dames, which is of no interest. Continue straight ahead until you reach Rue Brement, then turn left. At No. 38, find the yellow markings and follow them to the right onto Rue du Cimetière, then right again (south) onto Chemin du Guette Lièvre. At thefirst crossroads with Chemin Des Vaux Sassins (be careful, the markings are not very visible),
(6) Take the path on the left, then quickly leave it to follow the yellow markings on the right. It will join another path coming from the right. Continue straight ahead, heading east and climbing gently.
(7) Halfway up, follow the new yellow markings 30° to the left to avoid the steep climb. Continue climbing east-northeast until you leave the woods and find theGR® 655 (white/red). Follow it to the right towards the Grange des Bois farm. Look for a sign when you arrive in front of the farm.
(8) White/red markings (GR®). Turn left, pass in front of the farm, then turn slightly right at the farm exit, leaving a path on your left. After 150 metres, in front of a copse, follow theGR® trail 90° to the right, heading south towards the forest. Follow theGR® trail into the forest and descend to the junction with theGR®11 trailcoming from the left.
(9) Not marked. Leave theGR® and take the path opposite (slightly to the right). 100m further on, with the road visible on the right, take a new blue marker on the left. At the bottom, as you approach the first road opposite, leave the blue marker and turn right to reach the car park at the Butte site.
(10) Climb a few steps and take the path to climb up onto the plateau. Towards the top, do not take the passages on the left, but follow the right-hand edge of the plateau, with the ravine on your right. Go around the large rock on the right and you will arrive at a semi-circular area with a viewpoint, a parapet and a picnic area.
(11) Continuing on, find a blue trail and follow it up the steps to climb onto the rocks and enjoy the magnificent view to the west. Stay on the blue trail as it descends to the left. Leave the blue trail to go around the beautiful rocky cliff, which is what remains of the quarry face. Pass behind the wagon, without following the blue trail that heads southwest. Climb the mound of earth facing the quarry face to see the information board and enjoy the view. Continue east (towards the finish) to rejoin the path and descend towards the road (the map shows direct descents, but these are very steep and dangerous). Descend and rejoin the road at the car park.
(10) Finish the descent via the road. At the bottom, follow it around the bend to the left, then, 80 m further on, leave it and turn left onto theGR® trails. Follow them west-northwest until theGR® trails branch off to the left, after a sign indicating a geological site visible on the right about 800 m away by a round trip, but it is closed in bad weather.
(11) Describe the instructions from the waypoint here.
(12) White/red markings (GR®). Follow theGR® signs that go up to the left through the woods (south). When you reach the plateau, leave the woods and find the D148.
(13) Follow the road to the right, following theGR® signs for 200 metres, then leave the road and follow them to the left. Continue towards the woods, then follow them to reach the Chemin de Garde Neige, with an old quarry on your left. (You can cross it if you wish.)
(14) The descent follows theGR® signs. However, you can turn left to join the Chemin aux Ânes (signposted) at the edge of the woods and turn right for the descent. This is prettier but longer and requires you to follow the road to the right at the bottom, which has no shoulder at the beginning.
(14) Normal route: Cross the path and continue to follow theGR® signs towards the west-northwest. Walk along a housing estate at the end of the descent. When you reach the D17, the Morigny road, turn right to return to the roundabout at the start.
(1) Turn left to reach the crossroads with the Chemin de Vaux on your left. Leave the road you took on the way there and turn left onto the Chemin de Vaux, following the GR®. After the mill, continue right onto Rue du Moulin de Vaux. Cross the Juine, then follow it. Cross the stream, then look for the passage on the right to join the Route de St Fiacre on the right. Cross it and turn right to reach the car park
(S/E).
Visorando member
Difficult 
Very difficult 
