Climbbybike logo

Col de l'Izoard - Pont Montbardon (Guillestre)     open your myclimbbybike to add this climb

15.9 km  2360 m  (1094 m)  6.9 %


The Col de l'Izoard begins in Guillestre and is about 31.5 km long. The climb can be divided into two parts. During a long 16km run from Guillestre on the D902 you win only 400 vertical meters. An average of 2.5%.

When the D902 turns left direction Briançon at the D947, it gets serious. During the next 15 kilometers you still have to win a thousand altimeters. The first kilometers, in open countryside, are warming-up. But before you reach Arvieux, the percentage already rises to 8%. Arvieux itself gives you some rest, but after that, the climb starts for good. Still in an open landscape, the Izoard heads towards 10%.

When leaving Brunissard, the actual climb begins and the road starts swinging. Hopefully fairly quickly, the first hairpin follows. You're now among the pines while the surrounding landscape is becoming rougher. Just like the climb, which does not drop below 8% during the next 5 kilometer. This way, you reach the 2.000 meter limit. About time for a reward, because suddenly, the climb drops sharply for a few hundred meters.

Not for long though. A few minutes later you're climbing again to 10%. You reach the Casse Déserte with the monument of Fausto Coppi and Louison Bobet. The summit is within reach now. A few hairpin turns and you're there. To rest, you can visit the small museum about the Tour de France at the top.

The Col de l'Izoard is situated in Provence-Alpes-Cote d'Azur. This climb belongs to the Alps. The Col de l'Izoard via Pont Montbardon (Guillestre) is ranked number 380 of the Alps. This Col de l'Izoard approach starts in Pont Montbardon (Guillestre). The Col de l'Izoard climb is 15.9 km long. You gain 1094 heightmeters, so the average gradient is 6.9 %. The climb is ranked 1021 in the world. The maximum slope is 12%. If you want to climb the Col de l'Izoard, you can find more information on how to train to climb the Col de l'Izoard here.

Since 2005, the Col de l'Izoard will be/was climbed in the following big tour stages:
Giro d'Italia 2020 :  Alba - Sestrière on 24/10/2020
Tour de France 2019 :  Embrun - Valloire on 25/07/2019
Tour de France 2017 :  Briançon - Col d'Izoard on 20/07/2017
Tour de France 2011 :  Pinerolo > Galibier Serre-Chevalier on 21/07/2011
Giro d'Italia 2007 :  Scalenghe - Briançon on 24/05/2007

Images of the Col de l'Izoard

For more videos, visit

Climbbybike difficulty score (117.9)
Ranking Alps
Ranking France

Col de l'Izoard via Pont Montbardon (Guillestre) popularity rank : 51

The Col de l'Izoard has been climbed by 32 climbbybikers. It is ranked No. 51 as the most climbed climb in the world.
Discover all the most difficult climbs in France and the most popular climbs in France.

Col de l'Izoard via Pont Montbardon (Guillestre): 18 reviews

George Kraus

I climbed the Col d''Izoard in 1975 and 1983 while riding around Europe for 6 and 7 month tours — with 100 lb bicycles. In "75, 14 July, France''s national day I camped on top of the Izoard and saw the Tour de France when Bernard Thévenet took over the lead From Eddy Merckx. I have also climbed the Col d'' Vars, Galibier, Come de La Bonett, Col de La Madeleine, Col duLautaret, Col de LaForclaz, Col duTelegraphe, and others during those tours. In "75 I had my 30th birthday on that 7,000 mile tour when I went with a mail friend. My wife toured with me in "83 for 7 months and 4,400 miles. Great trips.

George K


The Guillestre side is definitely more difficult than the climb from Briancon. You start on the steeper stuff around Arvieux, and then it doesn''t relent until a short descent near the Casse Deserte. There are lots of flies to keep you annoyed in the summer also.


I did the Col d''Izoard from the southside in august 2012. Starting from an altitude of 1.250 m and arriving at the top at 2.360 m, after 14 km. The first 6 km are easy, but after the village of Arvieux, the road gets steepier (7 à 10 %) for the last 8 km. A great climb and when I did the climb, it was warm : whereas it''s normally 10° C at the top, it was 26° C at the top when I did it. Beautiful landscape at Casse Déserte!

Andrew Lloyd

My first alpine ride 29th July 2012 cycled from our base in Pelvoux. Set off 7am to beat the heat as we were getting 39c some days. Had a fantastic ride in the cool down to Argentiere La Bessee passing a few people going to the bakers here and there, along the N94 to Mont Dauphan were the traffic had to wait for a local road race to go through! Enjoyed seeing that along with ambulance etc and a guy coming back holding his broken chain. At Guiestre turn looking back Mont Pelvoux covered in cloud, everything else clear pale blue skies. Spectacular turning the first corner onto the Gorge du Guis road. Miles of gentle ascending climbing along the river. Another cycle event in opposite direction with hundreds of riders. Along the alpine meadows leading to Arvieux, then up the start of the climb proper. Arrive at the Cassee Dessert midday as heat builds up. Italian cyclists offer to take my pic. Cycle down a short distance to the Cafe Napoleon. Fantastic omlette and lots of water. Phenomenal fast descent to Briancon slowed down by wind unfortunately. Return to Pelvoux along N94 in real heat. Dived into the village pool to join family! An absolute dream first alpine ride!


This is indeed a classic climb and one which because of the magnificent scenery is up there with the best of Alpine climbs. I rode up on the 1st August 2011. As you leave the river valley behind the vista opens up to the massive scree slopes and the peaks above. Simply fab.


hello, we were on the 1ste july 2011 on the col de izoard with 2 bikes! does anyone know of there''s a site of the photographers who stand near the hills?

Thomas Blondiau

The scenery is indeed amazing, especially when riding through casse deserte close to the top. I also enjoyed the ride up from Guillestre to the foot of the actual hill, because you pass through a beautiful gorge. The descent is well suited for those interested in attaining top speeds, especially in the Arvieux section. The bottom sections are interesting for practising relays with a group of 5 to 6 persons.


I have one problem. In the 22nd jully I lost the Nikon E4600 camera in black bag, with wery much pictures of my family holiday. It happened on the way from Col d Izoard to Chateau Queyras. I forgot him on the top of my car... I have asked in the Arvieux infocentre, as well as in all buildings on Col d Izoard, but nothing... Of course is be sure, maybe him found an Italian, or some local sheepherd... So much the worse for me... But Hope dies last...! I am from Czech Republic and so my potentialities are wery limited.

Mark L

A beautiful ride from this direstion. The gorge is scenic and atmospheric, with ever such a gentle incline. A sharp turn left and the climbing begins. As ever, the straight road leading up to the hairpins is deceptively difficult. When you reach the hairpins, each virage gives the briefest respite to ward off exhaustion. The route is very well signed for cyclists, with elevation and gradient. At each ramp you can amuse yourself by guessing the gradient: 11% can feel surprisingly easy; 6% can feel surprisingly difficult. And the casse deserte: nothing I had heard or read had prepared me for the reality that suddenly unfolded aroud that hairpin turn - eerily magnificent. There is even a short downhill respite to the Coppi memorial before the final few hairpins to the top. More than five stars.


Magnificent climb!. Starting from Guillestre, first cycle along the river. It can be quite windy, so be alert. After some kilometers you start the initial climb. The first 6 km are easy en not very interesting. When you reach the village of Arvieux you can refill your bottle. Youll need that, because the next 10 km, you will be climbing at a percentage of 9. The surroundings are breathtaking. It is landscape that has been eroded by wind en water. It ressembles somewhat the surface of the moon. Dont forget to visit the little cycling museum at the top at 2361 m. Most beautiful climb of this part of the Alpes.

Chris Barson

Did this as part of the Etape de Tour in 2006. It is a moving place. I chose the monument at the top to leave a photo of my mates dad who died of MS. He loved Le Tour.

Add your story and review

Road condition
General score

Weather on top of the Col de lIzoard

Climbbybike power calculator Col de l'Izoard


Streetview of the Col de lIzoard here?
Go for adfree & full PREMIUM ACCESS (14,99€/year)

Buy Climbbybike's new jersey

✓ full access ✓ interactive map ✓ streetview Col de lIzoard ✓ download gpx-files ✓ full bucket list ✓ no ads

Did you already climb the Col de lIzoard ?

Tell us your story or send some pictures.

Do you want to climb the Col de lIzoard ?

Prepare yourself to climb the Col de lIzoard successfully.