Park in the car park at the cemetery in Bagnols-en-Forêt.
(S/E) With your back to the cemetery, head south-east along a track until you reach a fork.
(1) Take the right fork and head towards the Col de la Pierre du Coucou.
(2) At this intersection, take note of your surroundings, take the path that climbs to the right and leave the "rolling" track. Enjoy the magnificent view of the valley. Continue until you reach the signpost indicating the oppidum "La Forteresse".
(3) Turn right to reach it. It is easy to see why this place was an oppidum, as the view stretches far into the distance and the village of Bagnols is revealed in its entirety. The architecture of the houses shows that it has not been spared from property development.
(4) Retrace your steps.
(3) Continue to the right until you reach a track at a place called Bayonne.
(5) Turn right onto this wide track and follow it to a fork near an antenna.
(6) Turn right, pass a cistern and arrive at the car park near the cemetery (S/E).
The climb can be tedious for people who are not in good physical shape.