Car park at the Cougnet crossroads on the D71 between Cheylard-l'Évêque and Les Chazeaux.
(S/E) Cross the road and take the wide track that climbs slightly to a fork about 500 m away.
(1) Take the track on the left, which climbs a little more steeply (signposted Moure de la Gardille).
(2) At the sign, take the slightly steeper path on the left that climbs towards Moure de Gardille (1,503 m).
From the summit (metal cross), there is a 360° view and you can see Mont Gerbier des Joncs to the north-east, a well-known and very popular spot where the Loire river has its source.
(3) Descend via a path that branches off to the left and meets a fence that you follow all the way. Cut across theGR®®470and rejoin it a few metres further on.
(4) Follow it to the left and you will come to the very wide track taken by theGR®®7.
(5) Ignore the return path on the right. Continue on theGR®®7trail eastwards until you reach a fork.
(6) Turn onto the path that branches off to the right and descends slightly, and follow it for about 800 m.
(7) Turn right onto a small hairpin path under the trees (the start is not easy to find). This fairly wide path is very poorly maintained with beech regrowth but is fairly easy to follow. After a section through the forest, it disappears, but there are only a few metres of heathland to cross to rejoin theGR®®7trail.
(6) Turn left to retrace your steps to the fork in the path.
(5) Leave theGR®®7. Descend to the left, following the sign for "Source de l'Allier".
(8) After 500 m, turn left towards the bottom of the valley to reach the source of the Allier. Signposted "Source remarquable de l'Allier" (Remarkable source of the Allier).
(9) Return to the trail.
(8) Continue downhill to the left until you reach the signs indicating the sources of the Chassezac.
(10) Head in this direction by turning right, north-north-west, and follow the forest track to the junction withthe GR®®7.
(11) Cross over and continue along the track until you reach the first fork on the way out.
(1) Turn left to return to the car park (S/E).