The Lost Valley – Iseran Pass loop from Val-d'Isère
The Lost Valley – Iseran Pass loop from Val-d'Isère
276
runners
The Lost Valley – Iseran Pass loop from Val-d'Isère
06:33
34.4km
2,520m
Running
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is right next to a parking lot.
Last updated: June 19, 2026
Tips
Includes a segment that may be dangerous
A part of this route comprises technical, difficult, or hazardous terrain. Specialist equipment and prior experience may be required.
After 24.3 km for 53 m
Waypoints
Start point
Parking
Get Directions
3.42 km
The Lost Valley
Highlight • Gorge
Translated by Google •
Tip by
6.94 km
Ascent to Mont Picheru
Highlight • Climb
8.70 km
Passage de Picheru
Highlight • Mountain Pass
It gives access to the eponymous lake and spectacular views of the great peaks that surround it.
Translated by Google •
Tip by
11.1 km
Lake Sassière
Highlight • Other
12.6 km
Lake Santel
Highlight • Other
13.3 km
Bailletta Pass
Highlight • Mountain Pass
14.2 km
Réserve naturelle de la Bailletaz
Nature Reserve
18.1 km
Le Fornet
Highlight • Settlement
Showing Translation
Tip by
23.8 km
Iseran Pass
Highlight • Mountain Pass
Translated by Google •
Tip by
34.4 km
End point
Parking
Way Types & Surfaces
Way Types
13.0 km
12.9 km
6.34 km
1.50 km
468 m
117 m
< 100 m
Surfaces
15.2 km
10.5 km
5.13 km
1.58 km
969 m
845 m
189 m
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Elevation
Highest point (2,920 m)
Lowest point (1,800 m)
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Weather
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Saturday 11 July
16°C
6°C
-- %
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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