Stage 17 is a mountainous journey from Saint-Gervais Mont-Blanc to the altiport above Courchevel. This 165.6 km route features the formidable Col de la Loze and a total elevation gain of 5,400 m, making it a stage that will favor the true climbers in the peloton. The final 600 m of the stage is a challenging climb with a gradient of 10.8%, a test that will separate the strongest climbers from the rest. The stage begins with a 15 km rolling section before the riders tackle the Col des Saises, a 13.4 km climb with a 5.1% gradient. The route then descends to Beaufort before the riders face the Cormet de Roselend, a 19.9 km climb with a 6% gradient. After a long descent, the riders will climb the Côte de Longefoy, a 6.6 km ascent with a 7.5% gradient, before a series of smaller climbs leading to Notre-Dame-du-Pré. The Col de la Loze, a nearly 30 km climb, begins gently but the gradient increases to 7% after Méribel and the final 5 km averages over 10%. The stage concludes with a 6km descent, a brief uphill section, and a final 600 m climb with a 10.8% gradient. This stage is a golden opportunity for the climbers to gain time and possibly stage glory.