Sleipnir

Col de Joux Plane — 1,691 m

Col de Joux Plane, 1,691 m, in Haute-Savoie. Main climb: 11.3 km at 8.8% average, 993 m of climbing from Samoëns.

At a glance

Distance
11.3 km
Elevation gain
993 m
Average gradient
8.8 %
Difficulty index
9.4 Hard

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

Location

Department
Haute-Savoie
Altitude
1,691 m
Coordinates
46.12962, 6.71291

Opening Fermé l'hiver. Ouverture en général courant mai selon le déneigement ; le versant de Samoëns et celui de Morzine ne rouvrent pas nécessairement le même jour.

Map of the climbs

2 km© IGN – PLAN IGN v2 · © les contributeurs d’OpenStreetMap
2 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 Samoëns 11.3 km 993 m — 8.8 % 11.4 % 9.4 Hard
From Morzine 10.6 km 758 m 47 m 7.1 % 13.6 % 5.4 Sustained

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 de Joux Plane?

The hardest climb of Col de Joux Plane, from Samoëns, is 11.3 km long for 993 m of ascent, i.e. 8.8% average.

What is the steepest part of Col de Joux Plane?

The steepest 500 m sits at 11.4%, and the hardest kilometre is the 6th, at 9.8%.

Is Col de Joux Plane open all year round?

Fermé l'hiver. Ouverture en général courant mai selon le déneigement ; le versant de Samoëns et celui de Morzine ne rouvrent pas nécessairement le même jour.

Col de Joux Plane: 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.

Create an account

Free during the beta, no card required — places are limited.

A Polar watch syncs on its own; with any other watch, import your GPX or TCX files.

Garmin or Coros? Let me know when it’s ready

Which watch?