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Parking in Ferranville (spelled "Féranville" on the IGN map), Place André Feuillet: there is a car park along Rue de l'Élan, which is perpendicular to the road connecting Ferranville and the main town of Flexanville. The village of Ferranville is located about ten kilometres north of La Queue-les-Yvelines (SNCF train station and access to the N12).
No signposts
(S/E) Cross Rue de Goupillières and take Rue du Clos (post box on the right). Follow this street to the south-east. Just after the last house on the right-hand pavement, turn right onto a path through the woods (be careful, you can only see the path at the last moment). At a T-junction (small pond on the right), turn left. Leave the woods and walk along the fallow fields. You will reach some houses where the path becomes gravel and leads to a road (Rue de la Fontaine Hédin).
(1) Cross the road and take Chemin du Moulin. Immediately afterwards, take the path that branches off to the right towards a large building. After crossing a stream (reeds), leave the main path as it turns right towards some small houses and continue straight ahead on a grassy path that runs alongside a meadow on the left and a field on the right. The path curves to the left, then runs alongside some buildings and leads to a small road. Ignore the yellow arrow pointing to the left and take the road on the right. After a few dozen metres, at the EDF power station, take the path on the left which runs between two cultivated plots of land towards the cemetery.
Red and white markings
(2) At the cemetery entrance, take the small road on the right. Enter Flexanville. At a crossroads, take Rue du Pont slightly to the right (pass a sign for "Rue des Vignes"). At the next crossroads, turn left onto Rue Roger Darin. Pass the church (on your left), walk alongside the "Ferme de Flexanville" (on your right) and reach the exit of the main town (fork in the road with a cross in the middle).
(3) Take the path on the right towards the Écuries Flexnature (sign). When the path bends to the right, continue straight ahead on a grassy path, alongside an abandoned farm building (on your right). Continue west towards a small wood.
(4) Enter the woods and continue in the same direction (the purple line on the 1:25,000 map is inaccurate here). At the end of the woods, at a T-junction, turn left (south-west). Ignore a path leading off to the right and continue to another T-junction: then turn right (west-north-west). Pass a water treatment plant on your left. The path then becomes a small road which, a few hundred metres further on, leads to another small road at a place called La Poussinière.
(5) Take the road continuing in the same direction (north-west). Cross the D130 and take the path opposite along the garden fences. The path becomes a track that descends slightly. Cross a stream and climb up opposite to reach the edge of the fields.
Yellow markings
(6) Leave theGR® and turn right (east-northeast) onto a path that starts along a fence and then runs between cultivated fields. Ignore a path that branches off to the right towards some houses. At the next crossroads (stone wall), turn right onto a path that quickly becomes a street (Rue du Bottier). Come out onto the main street and turn left (sign for "Osmoy" then old wash house on the left). When the street bends to the left (sign for "Saint-Martin-des-Champs"), continue along the small street opposite, Chemin de la Mare à Jean. Climb slightly and reach Chemin de Notre-Dame de Pitié.
(7) Cross the street and take the path opposite (north-east) that runs alongside a fenced-in meadow on your left. Cross a small wood and stay on the edge. Continue straight ahead (north-north-east) between the cultivated fields. You will reach a crossroads.
(8) Take note of this crossroads: to the left, in the distance, you can see the octagonal bell tower of the church of St-Martin-des-Champs; opposite, a short distance away, is a copse (tree bearing a yellow cross). Then turn right at a right angle. After about 200 metres, at the next crossroads (wood in the distance opposite), turn right.
No markings
(9) A few dozen metres after the previous crossroads, at a fork, take the grassy path on the left, which heads south-east. When this path is joined by another path coming from the left, continue south-south-east towards a house in the middle of the trees. Pass the house and take a small street slightly to the right (street lamps on the right-hand side). Follow this street south then south-east and you will quickly reach the starting point (S/E).
Visorando member
Moderate 
Difficult 
