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ExploreVery low slope <5% %
Low slope <7% %
Moderate slope <10% %
Steep slope <15% %
Very steep slope >15% %
This route takes you under the foothills of the Vercors in the footsteps of the old tram line which linked Grenoble to Villard-de-Lans. You cross the old tunnels fitted out for the passage of the Tram and take the GR9 on the way back.