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Col de Cou — 1,116 m

Col de Cou, 1,116 m, in Haute-Savoie. Main climb: 7.8 km at 7.4% average, 577 m of climbing from Fessy. The Tour de France has been over it 1 times since 2023.

At a glance

Distance
7.8 km
Elevation gain
577 m
Average gradient
7.4 %
Difficulty index
4.4 Moderate

Figures for the main climb (From Fessy). The other climbs are further down.

Location

Department
Haute-Savoie
Altitude
1,116 m
Coordinates
46.26241, 6.45400

Map of the climbs

2 km© IGN – PLAN IGN v2 · © les contributeurs d’OpenStreetMap
1 km© IGN – PLAN IGN v2 · © les contributeurs d’OpenStreetMap

Cycling ascents

Derived climbs, with their figures
Main climb Distance Elevation gain Elevation loss Average gradient Steepest 500 m Difficulty index
From Fessy 7.8 km 577 m — 7.4 % 12.3 % 4.4 Moderate
From Boëge 11.7 km 397 m 23 m 3.4 % 8.3 % 1.3 Easy

Scroll the table sideways to see every column.

2 ascents proposed here — other ways up this col remain possible.

Distances and elevation gains derived from the OpenStreetMap road network and a digital terrain model, measured on the very profile shown here.

Figures computed on 7 September 2026.

The Tour de France here

Crossings
1
Editions
1
On the route
from 2023 to 2023
Usual category
Category 1
Year Stage Cat. First over the top
2023 Stage 14 Annemasse → Morzine Category 1 Giulio Ciccone

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Straight-line distances, not road distances. The cols a climb actually rides over are listed above.

Frequently asked questions

How long is the climb to Col de Cou?

The hardest climb of Col de Cou, from Fessy, is 7.8 km long for 577 m of ascent, i.e. 7.4% average.

What is the steepest part of Col de Cou?

The steepest 500 m sits at 12.3%, and the hardest kilometre is the 5th, at 9.6%.

How many times has the Tour de France been over Col de Cou?

The Tour de France has crossed Col de Cou 1 times, from 2023 to 2023.

Col de Cou: add this col to your collection

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