;9 July 2017 —
Nantua to
Chambéry, This mountain stage departed east from Nantua, with the race starting at
Les Neyrolles. The category 2 climb of
Côte des Neyrolles and the category 3
Col de Bérentin at occurred in the early part of the stage. The peloton continued south-east, crossing the
Génissiat Dam, prior to ascending the category 3
Côte de Franclens at . After a gradual descent south into
Seyssel, the riders turned east and commenced the ascent of the
Hors catégorie at . The race then descended south through
Virieu-le-Petit and turned east into the ascent of the
Hors catégorie Col du Grand Colombier at . Turning south at
Anglefort, the riders continued through
Culoz, to an intermediate sprint at
Massignieu-de-Rives. To the south-east, the category 4
Côte de Jongieux at was followed by the climb of the
Hors catégorie Signal du Mont du Chat at . The final descent of the stage was to
Le Bourget-du-Lac, before the finish line in Chambéry. Both
Geraint Thomas and
Richie Porte were forced to withdraw with bone fractures, after suffering crashes on the descents of the Col de la Biche and the Mont du Chat, respectively. Other withdrawals included
Robert Gesink,
Manuele Mori and
Jesús Herrada. == Rest day 1 ==