Saint-Égrève Dam-Bridge – Mortier Tunnel loop from Saint-Égrève - Saint-Robert
Saint-Égrève Dam-Bridge – Mortier Tunnel loop from Saint-Égrève - Saint-Robert
5.0
(4)
32
riders
Saint-Égrève Dam-Bridge – Mortier Tunnel loop from Saint-Égrève - Saint-Robert
04:19
41.0km
1,440m
Mountain biking
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels. The starting point of the route is accessible with public transport.
Last updated: March 30, 2026
Tips
Includes very steep uphill segments
You may need to push your bike.
After 6.02 km for 207 m
After 19.7 km for 224 m
Waypoints
Start point
Train Station
Get Directions
2.04 km
Saint-Égrève Dam-Bridge
Highlight • Bridge
Dedicated cycle path.
Translated by Google •
Tip by
5.32 km
Lavoir du Maupas
Cave Entrance
20.4 km
Mortier Tunnel
Highlight • Structure
Translated by Google •
Tip by
41.0 km
End point
Train Station
Way Types & Surfaces
Way Types
21.4 km
7.79 km
6.81 km
4.20 km
618 m
299 m
Surfaces
17.6 km
10.8 km
8.21 km
4.45 km
< 100 m
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Elevation
Highest point (1,410 m)
Lowest point (200 m)
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Weather
Powered by Foreca
Friday 22 May
31°C
14°C
0 %
Additional weather tips
Max wind speed: 7.0 km/h
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.