A tough climb to the epic Grand Colombier, just north-west of the Lac du Bourget. Be ready for a long climb (18 kms at 7% average) with gradients that go locally above 10%. The climb contains hairpins through a vertical rock face, forest, and wide views. A MUST-DO if you want to see if you are ready for the Alps. Enjoy!!
Interested in doing other huge climbs, see long epic climbs
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