Sleipnir

Col du Clergeon — 979 m

Col du Clergeon, 979 m, in Haute-Savoie. Main climb: 8.3 km at 8.8% average, 730 m of climbing from Ruffieux.

At a glance

Distance
8.3 km
Elevation gain
730 m
Average gradient
8.8 %
Difficulty index
6.4 Sustained

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

Location

Department
Haute-Savoie
Altitude
979 m
Coordinates
45.84719, 5.87749

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 Ruffieux 8.3 km 730 m — 8.8 % 13.6 % 6.4 Sustained
From Lornay 12.8 km 713 m 61 m 5.6 % 11.2 % 3.3 Moderate

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.

Cols nearby

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 du Clergeon?

The hardest climb of Col du Clergeon, from Ruffieux, is 8.3 km long for 730 m of ascent, i.e. 8.8% average.

What is the steepest part of Col du Clergeon?

The steepest 500 m sits at 13.6%, and the hardest kilometre is the 4th, at 11.7%.

Col du Clergeon: add this col to your collection

Sleipnir recognises the cols you cross from the GPS trace of your rides: the col ticks itself off the day you ride over it.

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