Jaudrais is accessible via the D140 between Senonches and Châteauneuf-en-Thymerais. Parking is available in front of the church.
No signposting
(S/E) With your back to Jaudrais church, turn right and go down the road that passes in front of the town hall. At the crossroads, turn right onto the D140.12 towards Maillebois. After the left-hand bend, continue straight ahead on the path and you will reach the hamlet of Les Mares.
(1) Opposite No. 23, take the road on the left that crosses the hamlet. At the junction with the D30, continue straight ahead on the path that goes around Bois Bouleau.
(2) At the road, turn left towards Jaudrais. At Bois Bouleau, just before No. 18, turn right onto the small road and, at the next junction, continue along the path opposite. Cross the Vau valley. View of the castle ruins. You will come to a road (D321.12) at the corner of the castle park wall.
(3) Continue along the path opposite, along the wall, then soon leave it and reach the Cour d'Aumoy. Continue to the D321.
(4) Cross it carefully and head straight ahead towards La Mardelle. Ignore the road on the right and you will soon reach a four-way crossroads.
(5) Turn right (D30), follow the road carefully on the right-hand side, pass under the high-voltage line and descend towards the Houillé valley.
(6) Pass through the bottom of the valley and climb back up a few metres. Cross carefully and take the path on the left, which first follows the valley and then climbs up to the right to join a road. Follow it to the left (D321.3) towards the farm in the hamlet of La Barre.
(7) At the three-way junction with a grassy island in the middle, continue left on the downhill road to the bridge over the Grande Vallée. (It is possible to take the path on the left 200 m before the bridge, GRP® Vallées de l'Avre et de la Blaise. However, it crosses the valley, which may be flooded or overgrown. It is therefore preferable to go around via the bridge.)
(8) At the small bridge over the Grande Vallée, turn left onto the path along the field and the valley. It enters the Châteauneuf-en-Thymerais National Forest.
Yellow and red markings
At the entrance to the forest, follow the edge to the left. Further on, leave the GRP® which climbs steeply to the right at the end of the Route Royale.
No markings
Take the path opposite, which runs alongside a plot planted with tall fir trees, and join the Route Forestière du Houillé. Turn right, pass in front of a wooden building and reach the entrance to a path on the left that goes around the Bois des Mores.
(9) Follow this path until you reach the Route Forestière de Jaudrais.
(10) Follow it to the left for about 50 metres. You will come to the entrance to a path leading diagonally to the right (plot 38 sign). Take this path, cross a forest road that runs through the Bois de Jaudrais and continue straight ahead to the next path. Turn left along another plot of conifers and go to the corner.
(11) Turn right around the plot and continue straight ahead on the path that leads to the edge of the forest, behind the Piperaux and Hennerie houses. The path becomes a trail along the edge of the road serving the hamlet, then winds above the D140. Join the Allée Centrale, which reaches the D140 on the right at the entrance to Jaudrais.
(12) Turn left onto the D140. Danger! Due to new roadworks near the bridge over the Grande Vallée, cross the road carefully first. Follow the right-hand side of the road. Cross the bridge on the zebra crossing. At the crossroads, continue along the cemetery to return to the car park in front of Jaudrais church (S/E).