Auvergne-Rhône-Alpes · France
Col de Joux Plane
D354Morzine to Samoëns
A steep, narrow Tour de France col above Morzine.
The D354 over the Col de Joux Plane at 1,691 m links Morzine and Samoëns, a steep, narrow Haute-Savoie col that has decided more than one Tour de France with its relentless ramps and a sudden view of Mont Blanc from the top. Demanding; mind the gradient, the cyclists, and the tight, tree-lined bends.
Where it runs14.3 mi · point to point
MorzineStart · Auvergne-Rhône-Alpes
SamoënsEnd · Auvergne-Rhône-Alpes
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Character
Corners34bends
Tightness7of 10
Max gradient10%≈ 1-in-10
Hairpins20tight bends
Descent1,031 mtotal descent
Summit1,700.9 mhighest point of the line · 5,580 ft
Corners
busiest around mile 11Elevation
under 4%4–8%over 8%708.9 – 1,700.9 mFrom the road
Points of interest3 stops
- Cascade de NyonViewpoint1.5 mi in
- La JaÿsiniaViewpoint13 mi in
- Col de Joux PlaneViewpoint7.1 mi in
Hazards
- Steep, narrow ramps
- Cyclists in numbers
- Tree-lined blind bends
Sources
“It's a narrow, often single-lane road, and quite steep, with some ramps reaching a grueling 15.0% gradient.”
Verified route: mapped from real road geometry and fact-checked by a human editor. How roads get checked
Driving the Col de Joux Plane: quick answers
How long does it take to drive the Col de Joux Plane?
Col de Joux Plane runs 14.3 miles (23 km) and takes about 32 min to drive without stops.
How difficult is the Col de Joux Plane to drive?
We rate it demanding: 34 corners including 20 hairpins, a maximum gradient of 10%, and a tightness of 7 out of 10.
When is the best time to drive the Col de Joux Plane?
Summer and Autumn are best.
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Col de Joux Plane
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