The Grand Rock – Merdaret Pass loop from Theys
The Grand Rock – Merdaret Pass loop from Theys
4.6
(8)
74
riders
The Grand Rock – Merdaret Pass loop from Theys
03:41
32.6km
1,300m
Mountain biking
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike. The starting point of the route is accessible with public transport.
Last updated: October 1, 2026
Tips
Includes very steep uphill segments
You may need to push your bike.
After 19.1 km for 231 m
After 19.9 km for 429 m
Waypoints
Start point
Bus stop
6.35 km
Col du Barrioz
Highlight • Mountain Pass
Translated by Google •
Tip by
13.1 km
Barrioz loop - Cret du poulet - Pipay
Highlight • Other
16.1 km
Chemin de terre
Highlight • Other
17.1 km
Crêt du Poulet Refuge
Highlight • Mountain Hut
Translated by Google •
Tip by
18.4 km
Lake Belleaiguette
Highlight • Lake
Translated by Google •
Tip by
18.9 km
View of Belledonne
Highlight • Viewpoint
Translated by Google •
Tip by
20.5 km
The Grand Rock
Highlight • Summit
Translated by Google •
Tip by
23.2 km
Merdaret Pass
Highlight • Viewpoint
Translated by Google •
Tip by
32.6 km
End point
Bus stop
Way Types & Surfaces
Way Types
21.8 km
8.32 km
1.25 km
1.22 km
< 100 m
Surfaces
9.69 km
8.58 km
7.81 km
6.15 km
196 m
124 m
< 100 m
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Sign up for freeElevation
Highest point (1,900 m)
Lowest point (630 m)
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Sign up for freeWeather
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Sunday 11 October
11°C
2°C
0 %
Additional weather tips
Max wind speed: 0.0 km/h
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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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