Col de la Biche

A very challenging climb

This cycling route departs Aix-les-Bains for the summit of the Col de la Biche. Steep gradients are the order of the day as you leave the banks of the river Rhone at the village of Seyssel and make your way upwards. Switchback after switchback will give you something to aim for as the gradients perpetually hover around double digits. Indeed, there is a section of 9 kilometers which averages 9.5%. On a clear day, you will have views across to the Alps and perhaps you will even spot Mont Blanc.

The road to the top is very quiet and has very little traffic. Apart from the summit sign itself, there are no real views to speak of at the top of the climb. Some may choose to take in this climb as part of a more demanding ride which will include the Grand Colombier. The route mapped here however is just to the top of the climb itself.

Suggested cycling route

Distance: 103km / 64mi

Start elevation: 245m / 803ft

Max elevation: 1,325m / 4,347ft

Metres climbed: 1,952m / 6,404ft

Metres descended: 1,952m / 6,404ft

Categorised climbs: 1

Food and water

We recommend leaving Aix-les-Bains with plenty of food and water for the climb. Options for resupply are available at the base of the climb at Seyssel.

Climb statistic and gradient profile

Col de la Biche

Length: 16km / 10mi

Average gradient: 7.5%

Start point: Seyssel

Elevation at top: 1,325m / 4,347ft

The summit is deep within tree cover meaning no panoramic views.


  • On a clear day you will have views across to the Alps as you make your way up the climb from Seyssel.
  • Switchbacks galore – infact no less than 20 to negotiate all the way to the summit.
  • The charming village of Seyssel on the banks of the Rhône river .