Plateau de Solaison, high above Bonneville in the Bornes massif, is a steep Hors Catégorie summit finish used by the Critérium du Dauphiné — its pro debut in 2017 and again in 2026. A long climb to the pastoral plateau near the Glières, pitching to ~14%.
Plateau de Solaison
1500 m · France
Also: Col de Solaison
High plateau road; usually open late spring–autumn
Open on the map →The side
| From | Length | Gain | Avg | Max | Cat |
|---|---|---|---|---|---|
| Bonneville | 11.9 km | +1042 m | 8.8% | ≈12.3% | HC |
From Bonneville
Hors catégorie≈15 hairpin bendsfaces N
0–4%4–7%7–10%10–12%12%+
The climb
Race history
1× Tour de France · 2× Dauphiné · 3 summit finishes · 2017–2026