The starting point is in the car park of the "La Locomotive" hall. This hall is located on the road (D524) leading to Uriage.
The route is marked with yellow signs and signposts.
(S/E) Leave the car park and take the departmental road on the left towards Uriage for about 300 metres until you reach an intersection.
(1) Turn right, cross the road and the stream, take the small road opposite that runs along the wall surrounding the castle grounds and continue straight ahead for about 1 km.
(2) Leave the path and take the trail on the left that goes uphill. The climb is steep until you reach the viewpoint.
(3) Continue north on the main path. This becomes a forest track that follows the contour line and then begins to descend until it joins the path that climbs to Montjean.
(4) When you reach the bottom of the descent, turn right onto a small tarmac road and continue downhill for about 300 metres.
(5) Leave the marked route and turn left to join the district road. Cross it, take a small road opposite and continue in roughly the same direction. Pass one road on the right and two on the left.
(6) After a short climb, turn right then left, and you will be in the old village, known as Château de Paille. The street descends; pass a street on your left.
At the second street, you can turn left onto this small uphill road, which leads to the entrance of the ruins of the old Château du Roi. This site is closed to the public from October to March. Return to the crossroads and go down to the left. Immediately after, continue down Rue du Château du Roi until you reach a small square, from where you can see the town hall. Continue in the same direction along Rue Malpertuis to reach the departmental road.
(7) Turn left, go through the tunnel and you will reach the Salle la Locomotive and the car park (S/E).
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