Col de Portet
Col de Portet is a modern Pyrenean monster. From Saint Lary Soulan, it climbs for 16.4 kilometres at an average that leaves very little room for pretending this will be comfortable.
- Length
- 16.4 km
- Elevation Gain
- 1,599 m
- Average Gradient
- 8.6%
- Difficulty
- Hors Catégorie
Community recommendation
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Col de Portet is described as the heaviest climb in France in the briefing, and the numbers make the case clearly. Sixteen point four kilometres at 8.6 percent is already enough to demand respect. Add the scale of the Pyrenees and the sense of climbing into thinner, quieter mountain air, and you get a road that feels serious from bottom to top.
This is not a climb built around one famous corner or one postcard view. Its identity is the sustained effort. The challenge is staying calm while the gradient keeps asking questions. For riders who want a proper high mountain test in the Pyrenees, Col de Portet belongs near the top of the list.
How to Ride It
- Start below your normal climbing pace. The average gradient is high enough that even a small overreach becomes expensive.
- Keep eating and drinking before you feel like you need it. Long, steep climbs punish late decisions.
- Focus on consistency rather than speed. Col de Portet is a climb where survival pacing often becomes the smartest pacing.
Where to Stay
Saint Lary Soulan is the logical base. It puts you close to the start and gives you access to a wider network of Pyrenean routes, making it ideal for a climbing focused trip.
Practical Tips
- Toulouse is the most practical major airport for many international visitors heading into this part of the Pyrenees.
- Check road access and seasonal conditions before planning the climb. High mountain roads can be weather dependent.
- Take the descent seriously. After such a hard climb, concentration can drop exactly when you need it most.
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