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District:
Departure: Maison des Pins, 12 rue Charles Péguy, in Palaiseau.
The route is marked with blue and white markers.
(S) From Maison des Pins, 12 rue Charles Péguy, 50 metres to the left of the exit of the "Lozère" RER station (line B). Beautiful house where Péguy lived, known as "des Pins", from where he left for Chartres (plaque).
Head west and take the second street on the left.
(1) Follow Rue Henri Poincaré, then turn left onto Rue du Professeur Daniel Villey heading south. Cross the bridge over the Yvette.
(2) After the bridge, turn right onto the path and follow the river to Bures-sur-Yvette. The trail follows theGR®655(red and white) markings to the Paris-Sud University Campus, covering nearly five kilometres on the right bank of the Yvette.
(3) Pass to the left of the sports facilities, which will take you to Rue Pierre de Coubertin towards Bures-sur-Yvette. At the roundabout, cross the Voie de la Faculté and join a 40-metre pedestrian ramp opposite: turn right onto Rue de la Fontaine Saint-Mathieu for 150 metres, then left onto Avenue du Souvenir leading to Rue Charles de Gaulle: cross it.
After the church in Bures, head back up towards the station on Rue du Général Leclerc. Cross to the other side of the tracks via the underpass (signage is difficult to spot).
(4) The route follows the RER B railway line on the right for a few dozen metres, then enters a pedestrian garden street for 250 metres: this is Chemin de la Croix de Bures.
At the "Croix de Bures" (a beautiful stone cross and historical plaque), the signs follow the D988 on the right, which you will cross at the traffic lights 50 metres further on.
(5) At the traffic lights, go up into the woods on the left (yellow markings in the undergrowth). Very steep climb. The route of the old Massy-Chartres railway line is reached at the top. After going through a very surprising old railway tunnel, you arrive at the spectacular Viaduc des Fauvettes.
(6) Follow the markings in the suburbs of Gometz la Ville (Saint-Clair). Arrive via Rue des Rochers, then continue left onto Route de Grivery. At the cemetery, turn left and walk along the right-hand side. When you reach a small roundabout, turn left for a few metres and you will come to the large crossroads known as "Bertin", named after the inventor of the aerotrain.
(7) Follow the D988D for 1.2 km, a straight, green route above the road tunnel; it crosses Rue de Janvry after 1 km.
(8) Before exiting the road tunnel, watch out for the left turn in the route. The route reaches the former Aérotrain line, now known as "Véloscénie" and used by both cyclists and pedestrians.
(9) Continue along this former Aérotrain line, now known as the Véloscénie.
(10) The Forges-les-Bains variant starts on the left, but continue on "Véloscénie".
(11) Leave the "Véloscénie" route on the left at the D988. Reach Limours via the Rue du Moulin à Vent downhill, continue along Rue de la Ferronnerie and finally Rue de Marcoussis, which lead to the church and its market square. At its western end, the long Rue du Couvent on the left leads 1.5 km to the southern exit of Limours. Follow the golf course and you will come to the D97 (watch out for traffic).
(12) Take the D97 on the left for 300 metres before turning right to reach the hamlet of Le Chardonneret.
(13). Leave the hamlet to the south, via a path in the bend formed by Rue de la Ferme and Rue de Bellevue.
You will then find yourself surrounded by fields and woods. Pay close attention to the signposts, which can be difficult to see in wooded areas. Here and there, you will find Pays de Limours signposts with directions.
(14) At La Gronnière (marker no. 83), turn right into the forest onto theGR®11.
(15) When you arrive at Bois d'Ardeau (marker no. 80-33), you will be close to the motorway and the TGV line, which you will cross underneath. Cross Machery via Rue du Lavoir (the wash house is at the end of this street), then turn left and then right to take Rue des Bruyères heading south.
(16) Be careful at the fork in the road (hut on the left): take the right-hand path which climbs gently between the fields. At the riding centre, continue south, pass the high-voltage power lines, cross a stream and cross the D132.
(17). Continue south for another hundred metres until you reach the next fork.
(18) Leave theGR®11(markings almost non-existent) and take the path on the right that winds between two hedges; this is theGR®111(scrub). Pass under the high-voltage power lines again and continue west.
(19) At the crossroads in the Bois de Tous Vents, turn left and leave theGR®11Don your right to stay on theGR®111. Climb up and, at a small pass, turn right to cross the Butte de Tous Vents, heading east to west. You will reach a small road, which you should take to the right. Continue for a few dozen metres.
(20) Turn sharply left onto a path that descends towards Levimpont to the south-southwest.
(21) In the village of Levimpont, on the Rémarde (mill/lodge), take the small road on the right (west). At the fork, take the small bridge over the Rémarde (E).
Association / Club / Walk leader
Difficult 
Visorando member
Moderate 
Easy 
