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Start at the corner of the town hall in Longvilliers. Access via the A10, exit "Dourdan", then D149 towards Rambouillet and D27 immediately on the right and, finally, the first left towards Longvilliers. Park in the car park in front of the town hall, on the left-hand side of the road when coming from the A10; do not park in the car park opposite the town hall, which is reserved for users of the town hall.
Red and white signposts
(S/E) With the town hall on your left and the church opposite, turn left onto theGR®655, a small road towards Le Reculet / Petit Plessis, and pass the school. At the three-way junction, take the wide path opposite (west) with a horse training ground on your left and a meadow on your right. After about 500 metres, cross the D149 road (be careful, this road is busy). Continue along the wide path that runs alongside alternating meadows, hedges and woods. At the next crossroads, turn left onto the small road that goes downhill.
(1) Opposite the gate (sign for "Haras des Sables"), turn right and follow a hedge of tall poplar trees on your left. At the next fork, take the right-hand lane (dead end). After one house, the tarmac gives way to a path on the edge of the woods on your left.
(2) At the corner of a football field, turn left towards the Moulin Neuf (museum). Before reaching it, turn right through a gap in a wooden fence (at the edge of a public park) and follow the gravel path on the left. Under the shade of the trees, follow the Rémarde on your left. At a crossroads, turn left and cross the river on a footbridge. Continue between the two branches of the river, ignoring a concrete footbridge on the left and then another on the right. Cross the river again (small waterfall on the right) and you will reach a pond.
(3) Go around the pond on the right. When you reach the southern tip of the pond, leave it and turn right into a lane, cross the river again and leave the park (white gate).
(4) Turn right onto Rue Beethoven. Cross two branches of the river and turn right. At the end of the street, turn left onto Rue Nuisement. Turn right with the street (beautiful house on the left, church bell tower clearly visible opposite). At the next crossroads, leave theGR® signposts for a moment, turn left onto Rue du Bon Saint-Arnoult and walk a few dozen metres to the fountain of the same name on the right-hand side of the street.
(5) Retrace your steps. At the crossroads, turn left onto Rue de la Fontaine and rejoin theGR® signposts. At a small square (bar-tabac), continue straight ahead (west). At the next fork, take Rue du Coq on the left. Immediately after, turn right into Ruelle Triquedame. This starts with a flight of steps and then gives way to a path that passes behind the church. At the end of the path, at the foot of a "tourelle" (small tower), turn left and you will reach the church gate. Turn right into Rue de l'Eglise and you will come to a square with many shops.
No signposts
(6) Leave theGR®655trail on your right and turn left at a right angle into Rue des Prêtres. At the bottom of the descent, turn left.
Red and white signposts
At the T-junction (Rue du Coq coming from the left), turn right and follow theGR®1. Cross two branches of the Rémarde (old wash house on the right).
No markings
(7) At the crossroads, leave theGR®1straight ahead uphill and turn left into Rue de l'Aleu. Ignore Rue du Bon Saint-Arnoult on the left. At the second stop sign (Rue Beethoven coming from the left), continue straight ahead. Walk past some beautiful houses on the left, then some horticultural buildings on the right. Ignore the road on the left that descends towards a horse riding centre, then the road on the right that climbs towards a private property.
(8) Immediately after, before the "Fin de zone limitée à 30km/h" (30 km/h zone ends) sign, turn left onto a lane lined with hedges. Follow this lane along the edge of woods or meadows. At a small water treatment plant, join a small road coming from the right and follow it roughly in line with the lane.
(9) After about 200 metres, before this road bends sharply to the left and downhill, turn right onto a path that initially runs parallel to the road and slightly uphill, then heads east-northeast along the edge of a horse paddock on your left (solid fence) and a cultivated field on your right. At the end of the fence, continue eastwards along the edge of the woods on your left. Pass a hut on your left and note the river on your left. You will then reach the Moulin des Echelettes.
(10) Continue straight ahead (still east) on a small paved road. Turn right and follow a larger road uphill (with a hedge between the two roads). At the top of the hill (stele), turn left. Immediately after, cross the D149 road again (be careful, use the pedestrian crossing on the left and the central reservation). Continue straight ahead on a small road which, further on, joins a tarmac path on the left, then turn left at the corner of the Moulin de la Forge (equestrian centre). Cross the Rémarde one last time, go uphill and reach the three-way junction you took on the way out. Turn right, walk alongside the school and return to the starting point (S/E).
. And the poplar trees have been "cleared away", so there is now only a hedge of poplars.
Visorando member
Association / Club / Walk leader
Difficult 
