Brief description
This is a very steep route that leads to a small cluster of chalets perched on a tiny terrace on a rocky, steep mountainside.
The highlight of this hike is a huge stone basin, carved directly into a large boulder.
Because the area lacks natural water sources, this basin was built to collect rainwater from the roofs of the chalets.
The trail is suitable only for those who enjoy steep and wild itineraries.
Most usefull data
| General evaluation | |
|---|---|
| Difficulty | E+ |
| Uphill slope | 870 m |
| Total length | 6.300 m |
| Total time | 4h 0m |
| Assiduity | Low |
Map
| Start point | Yair dessus car park |
|---|---|
| Start elevation | 1.071 m |
| Arrival point | Muleret |
| Peak elevation | 1.825 m |
| Max elevation | 1.825 m |
| Exposure | Some |
| Downhill slope | 870 m |
|---|---|
| Uphill time | 2h 30m |
| Downhill time | 1h 30m |
| Uphill trail sign | 3 3A |
| Downhill trail sign | 3A 3 |
Start point description
From the Pont-Saint-Martin motorway exit, turn right towards Turin. At the second roundabout, turn left following signs for Gressoney.
The road climbs for several hundred meters, then turn right into the Lys Valley road, passing through the villages of Lillianes, Fontainemore, and Issime.
Continue to the main village of Gaby, cross it entirely, and on the left take the small road leading to the hamlet of Yair Dessus, where you will find a small car park.
Trail description
From Yair Dessus, the mule track begins, climbing to the left into the forest.
The path crosses a steep gully before traversing to the right across a rocky wall along a beautiful panoramic trail, protected by a wooden railing, and leads to the crossroads just before the houses of Pian dou Beily.
The route then ascends the steep ridge through rocky terrain and a forest of larch and fir, following a path that at times becomes faint and requires good orientation skills.
Eventually, you reach the abandoned chalets of Côas and, a little further on, those of Muleret.
The return follows the same trail, with caution required due to the steepness.
Last update
30 October 2025, 11:00