Roche Brune Viewpoint – Le Grand Ratz viewpoint loop from Voiron
Roche Brune Viewpoint – Le Grand Ratz viewpoint loop from Voiron
5.0
(6)
20
hikers
Roche Brune Viewpoint – Le Grand Ratz viewpoint loop from Voiron
06:30
20.9km
740m
Hiking
Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required. The starting point of the route is accessible with public transport.
Last updated: August 20, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Train Station
Get Directions
700 m
Escaliers Artistiques
Highlight • Other
6.19 km
Viewpoint
Viewpoint
8.94 km
Le Trou Noir
Highlight • Other
Translated by Google •
Tip by
10.7 km
Roche Brune Viewpoint
Highlight • Viewpoint
Translated by Google •
Tip by
12.2 km
Espace naturel sensible du Grand Ratz
Nature Reserve
13.6 km
Le Grand Ratz viewpoint
Highlight • Viewpoint
Translated by Google •
Tip by
20.9 km
End point
Train Station
Way Types & Surfaces
Way Types
12.3 km
4.53 km
3.18 km
639 m
141 m
< 100 m
Surfaces
11.0 km
4.65 km
3.27 km
861 m
639 m
419 m
< 100 m
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Elevation
Highest point (910 m)
Lowest point (290 m)
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Weather
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Today
Tuesday 1 September
29°C
12°C
0 %
Additional weather tips
Max wind speed: 13.0 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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