The Iseran is a very long climb. From Bourg-Saint-Maurice, it takes not less than 48 kilometers to reach the top. Fortunately percentages are quite low, and there are even some long descents to recover.
From Bourg-St.-Maurice you take the D902 to Sainte-Foy-Tarentaise. Soon, you'll ride along the Isère River which you will follow almost till the top. It is only passed Sainte-Foy-Tarentaise that you get some heavier pieces and the climb flirts with "yellow" (+ 7%). After 15 kilometers you reach La Thuile, where the climb softens on tedious long straight sections. After six kilometers, after you passed the first exit to Tignes (D87B), the climb becomes more difficult again until you see the impressive dam of the reservoir see popping up right before you. What follows are nine almost flat, sometimes even dropping kilometers to Val d'Isere. Pay attention to take light on your bike, because here are some dark, narrow and unsafe tunnels.
At the beautifully situated ski village of Val d'Isere, the climb really starts, after 33 kilometers. What follows until the top belongs to the more beautiful climbing endeavours. Only now you can see the actual Iseran. After the Pont-Saint-Charles it gets a lot steeper. You are now at more than 2,000 altimeter. Some switchbacks provide a welcome rest. Between rocks and snow (remains) is the climb gets a little easier towards the top. After several hours of climbing, this is well deserved. Eventually you get to see the summit with its typical chapel as well as a souvenir shop where you can refill. Before you lies the snowy summit of the Grande-Sassière, almost 4,000 meters high.
The Col de l'Iseran is situated in Rhone-Alpes. This climb belongs to the Alps.
Starting from Bourg Saint Maurice,
the Col de l'Iseran ascent is 48 km long. Over this distance, you climb 1955 heightmeters.
The average percentage thus is 4.1 %.
Look for other sides to climb the Col de l'Iseran.
Since 2005, the Col de l'Iseran will be/was climbed in the following big tour stages:
Tour de France 2007 : Val-d'Isère > Briançon on 17/07/2007
Tour de France 2007 : Le Grand Bornand-Tigne on 15/07/2007
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