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Col de Plan Bois from Les Clefs

4.0
2 reviews | Elevation profile | 6 photos
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Col de Plan Bois from Les Clefs
Col de Plan Bois from Les Clefs
Col de Plan Bois from Les Clefs
Col de Plan Bois from Les Clefs
Col de Plan Bois from Les Clefs
Col de Plan Bois from Les Clefs
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Elevation profile Col de Plan Bois from Les Clefs

Statistics

Difficulty points 685
Length 3.6 mi
Average gradient 9.7%
Steepest segment 21%
Total ascent 1850 ft

Short recap

Beautiful scenery
Hidden gem
3 hairpin turns
#37 toughest climb of Haute Savoie
#82 most elevation gain of Haute Savoie
#89 longest climb of Annecy
#38 average steepest climb of Haute Savoie
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Col de Plan Bois from Les Clefs is a climb in the region Annecy. It is 3.6 mi long and bridges 1850 ft of vertical ascent with an average gradient of 9.7%, resulting in a difficulty score of 685. The top of the ascent is located at 4255 ft above sea level. Climbfinder users shared 2 reviews of this climb and uploaded 6 photos.

Road name: Route de Plan Bois

This is an automatic translation, the original language is: French.
Away from the main traffic, the Planbois pass, accessible by 3 sides, offers short but sporty climbs. This version is the most direct From Thônes, take the D12 towards Serraval, Saint Ferréol then after 3 kms turn left towards Col de Planbois, There are then 6.5 kms left and not the least, the slope is steep from the start with 2 kms at more than 11% of average, the road is in good condition and if you are not the head in the handlebars, take advantage of it to look at the landscape . Fr... read more

Photos (6)

Col de Plan Bois from Les Clefs
Col de Plan Bois from Les Clefs
Col de Plan Bois from Les Clefs
Col de Plan Bois from Les Clefs
Col de Plan Bois from Les Clefs
Col de Plan Bois from Les Clefs

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Reviews (2)

5.0
4.0
3.0
2.0
1.0
franckvillano
3 y 4.0
This is an automatic translation, the original language is: French. Show original

The particularity is that this pass is often climbed in second or even third position on your route... and what is manageable in itself becomes a hell of a lot of work, especially in the blazing afternoon sun. Otherwise, it's a superb pass without traffic, super quiet and very invigorating! Good luck ;-)

La particularité, c'est que souvent ce col se monte en deux voire troisième position sur votre parcours... et ce qui est maitrisable en soi devient un. enfer, surtout sous le soleil de plomb de l'après-midi. Sinon, c'est un superbe col sans circulation, super calme et très vivifiant! Bon courage ;-)

Col de Plan Bois from Les Clefs
Dashboard
sergenavetat
5 y 4.0
This is an automatic translation, the original language is: French. Show original

Away from the main traffic, the Planbois pass, accessible by 3 sides, offers short but sporty climbs.
This version is the most direct
From Thônes, take the D12 towards Serraval, Saint Ferréol then after 3 kms turn left towards Col de Planbois,
There are then 6.5 kms left and not the least, the slope is steep from the start with 2 kms at more than 11% of average, the road is in good condition and if you are not the head in the handlebars, take advantage of it to look at the landscape .
From the small hamlet of Lachat you can breathe for 2km lighter "if we can say" at 7,5%
After crossing the hamlet of Veuillet, the slope will become steep again and irregular until the summit, alternating high percentages with brief lulls, %average 10 over 2 milestones.
Arrival at the summit 1299M, it's not very high! but what a climb!
At the hostel you can have a drink but no way to eat even a piece of blueberry pie in the morning.

A l'écart de la grande circulation, le col de Planbois, accessible par 3 versants, propose des ascensions courtes mais sportives.
Cette version est la plus directe
Au départ de Thônes il faut prendre la D12 en direction de Serraval, Saint Ferréol puis après 3 kms tournez à gauche direction Col de Planbois,
Il reste alors 6,5 kms et pas des moindres, la pente est raide d'emblée avec 2 kms à plus de 11% de moyenne, la chaussée est en bon état et si vous n'êtes pas la tête dans le guidon, profitez en pour regarder le paysage .
A partir du petit hameau de Lachat vous pourrez soufflez pendant 2km plus léger "si l'on peu dire" à 7,5%
Après la traversée du hameau du Veuillet, la pente va devenir à nouveau forte est irrégulière jusqu'au sommet,  alternance de pourcentages élevés avec de brèves accalmies, %moyen 10 sur 2 bornes.
Arrivée au sommet 1299M, c'est pas très haut ! mais quelle montée ! 
A l'auberge vous pourrez prendre une boisson mais pas possible de manger ne serait-ce qu'un morceau de tarte aux myrtilles le matin.

Col de Plan Bois from Les Clefs
Col de Plan Bois from Les Clefs
Col de Plan Bois from Les Clefs
Col de Plan Bois from Les Clefs
Col de Plan Bois from Les Clefs
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Climbing times

5 mph 00:43:38
7 mph 00:30:53
9 mph 00:24:04
12 mph 00:18:05

Road surface condition

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Traffic

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Frequently Asked Questions

Col de Plan Bois can be cycled from 3 sides. Col de Plan Bois from Les Clefs via Le Foux is the most popular side, but the summit can also be reached via Col de Plan Bois from Les Clefs & Col de Plan Bois from Manigod.

Col de Plan Bois from Les Clefs is a challenging ascent. For this type of climbing, we recommend mountain gearing, specifically a compact system. This means a small front chainring of 34 teeth, combined with a rear cassette where, depending on your level, strength, and experience, you choose a sprocket with 30, 32, or even 34 teeth. Remember that a smooth cadence is always more efficient!

Col de Plan Bois from Les Clefs is a first-category climb: long and tough. Do not underestimate this climb. Many famous Tour de France cols fall into this category. Prepare for a long, challenging ride. Only well-trained riders will reach the top smoothly. Make sure you have a road bike with climbing gears and enough training; otherwise, it will be a struggle.

Col de Plan Bois from Les Clefs is 3.6 mi long.

The average gradient of Col de Plan Bois from Les Clefs is 9.7%.

Col de Plan Bois from Les Clefs has a steepest segment with an average gradient of 21%.

The summit of Col de Plan Bois from Les Clefs is at 4255 ft.

At a slow pace of 5 mph, it takes about 00:43:38 to climb Col de Plan Bois from Les Clefs. At 7 mph the time is 00:30:53, and at 9 mph 00:24:04. For the fastest cyclists, 00:18:05 is an achievable time.

Col de Plan Bois from Les Clefs is located in the region Haute Savoie in France.

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