The Col du Grand Ballon ) is a mountain pass situated close to the summit of the Grand Ballon ) in the Vosges Mountains of France. It connects Cernay with Le Markstein winter sports station.
From Cernay , the total distance is 23.3 km at an average gradient of 4.5%, gaining 1,046 m in height. This route follows the Route des Crêtes over the Col de Herrenfluh ) after 9.5 km . After a short descent, the road climbs again to the Col de Silberloch ) before descending to the Col Amic ). From here, there remain 6.8 km at an average of 7.6%. In the forest on this final section, there are two short paved stretches. 3 km from the summit, the gradient increases to over 8%.
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