Col de Joux Plane
11.6 km at 8.5% from Samoëns with hardly a let-up, one of the toughest climbs in the northern Alps. In the Tour it usually comes last, followed by the fast, technical descent to the finish in Morzine.
- Start: Samoëns
- Length: 11.6 km
- Elevation gain: 989 m
- Average gradient: 8.5%
- Max gradient: 12%
- It first featured in the Tour in 1978, with Christian Seznec first over the top on the stage to Morzine.
- In 2023 Tadej Pogačar and Jonas Vingegaard fought it out on the climb; Carlos Rodríguez caught them on the descent and won in Morzine.
- In 2025 it featured in the Tour de France Femmes, on stage 9 to Châtel.
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