Update by the author on 14/09/2025:
- the point (18) was incorrectly located and has been moved
- the point (19) was incorrectly located and has been moved back to the former position of point (18)
- Corresponding adjustments have been made in the "Practical information" section of the sections (18) to (20). One of the descriptions has been deleted as it was superfluous.
- renaming of point (1) (this is the Passerelle du Saugy), point (2) (this is the locality known as stream du Dard), point (24) (this is the locality known as Les Miches), and point (25) (this is the locality known as Bellecombe)
Departure from the hamlet of Le Crot, about 2 km from Sixt-Fer-à-Cheval via the D907. There is a small car park at the end of the access road.
(S/E) Return to the access road to the car park and cross the hamlet of Le Crot. At the bottom, turn right, then left to carefully cross the D907 and take the bridge over the Giffre (Passerelle du Saugy).
(1) On the other side, continue left on a path towards the Cirque du Fer à Cheval (follow the signs to point (5)). Further on, cross a stream via a footbridge.
(2) At the fork on the other side, turn left. Head north-east to a bridge over the Giffre at a place called Le Molliet.
(3) Continue straight ahead on the path (do not cross the bridge). Walk along the Giffre river on your left.
(4) At an intersection near the Pont de l'Eau Rouge bridge and the D907, turn right. Ignore a turn-off on the right and continue heading east-northeast.
(5) Join the D907 and follow it carefully to the right for about 250 metres.
(6) Then turn left, carefully cross the D907 and cross the Giffre once again. Then follow a path that immediately turns right and climbs up the mountainside.
(7) At an intersection in a place called Giffrenant, veer slightly left towards the Chalet de Prazon and leave a few buildings on your right. Continue straight ahead, north-northeast, and walk along the Giffre river below on your right. Reach the Giffre at a bridge that crosses it.
(8) Continue straight ahead (do not cross the bridge). Look for a trailhead on the left just before a turning area and the Chalet de Prazon (refreshment bar).
(9) Turn left onto this path towards the Refuge de la Vogealle via the Pas du Boret. Climb up a few slab passages while crossing a few streams. Then continue along a long exposed passage; the whole section is very well equipped with numerous cables but requires caution: for more details, see the Practical Information section. Then climb up through the forest to reach the Chalet du Boret (refreshment bar) in open terrain.
(10) Continue to the left, west-northwest, towards the Refuge de la Vogealle, indicated as a 1.5-hour walk. Go around the Pierre du Dard (elevation 1635) on the left. Continue climbing, keeping north until you reach an intersection near the Refuge de la Vogealle.
(11) Continue towards Lac de la Vogealle (do not cross the stream). Continue to the first intersection, about a ten-minute walk away.
(12) Turn left, leaving the path leading to the lake. Follow a steep path running alongside a stream until you reach a rocky outcrop.
(13) Proceed very carefully along the Pas à l'Ours. In an environment of black schist, continue along a narrow, very exposed ledge, where any misstep is truly forbidden (see the practical information section for more details). This will take you to a flat area.
(14) Then head right (west) and leave a hillock (elevation 2193) on your left. Next, head west-southwest, first across a lawn and then over scree. Then take a sort of pass. At the foot of Pointe Rousse des Chambres, head south to reach Col des Chambres on the edge of Grand Névé. In the past, snow was present in the area all year round, but this is no longer the case.
(15) Continue south-southeast off the trail and without markings, following the cairns. Be careful of possible snow and sharp limestone pavement (see the practical information section for more details). You will reach the summit ofPointe de Bellegarde and its magnificent panorama.
(16) Turn right (south-west) and cross some sharp limestone pavement to reach the Col de la Boîte aux Lettres. Then turn left to quickly reach the Boîte aux Lettres itself.
(17) Bend down to take a long crack in the rock (hence the name of this passage). Descend steadily down a rugged slope with a few passages equipped with cables or chains. You will reach a flat area.
(18) Continue downhill along the edge of the scree slope, following the cairns: be careful, as this is off-trail and there are several possible routes. When you reach another flat area, head right (west) to the start of a path marked by a cairn.
(19) Follow this path to the left; it is not very well marked on a short section where you may hesitate. Reach another flat area.
(20) Continue descending south-west on a fairly regular path. Then head south and descend steadily.
(21) Further on, head west-southwest and descend via a series of tight bends. Continue along a fairly gentle slope to the Chalets de Salvadon.
(22) Continue straight ahead on the path to reach the bottom of the valley. Then turn left. Join a track suitable for vehicles and follow it as it continues.
(23) At an intersection at a place called Croix à Augustin, veer slightly to the right (south) and enter the forest. Descend steadily with several turns.
(24) At a stream (waterfall on the right), continue downhill for a long time, following the winding path through the forest.
(25) At an intersection, continue straight ahead and downhill, ignoring the path that goes up to the right. Then pass a few paths on the left and reach the Crot car park (S/E).