Col de Porte

from Saint-Pierre-de-Chartreuse · French Alps, France

Gradient:

<4%

4–7%

7–10%

10–12%

>12%

Approach route

GRADIENT PROFILE

<4%4–7%7–10%10–12%>12%

Km-by-km average gradient from Copernicus GLO-30 elevation data along the road.

The Saint-Pierre-de-Chartreuse approach to Col de Porte covers 8.1 km at 6.4% average, 516 m of ascent, with pitches to 12.3%. Its steepest kilometre averages 10.9% near km 4.7. On the Fiets scale this side rates 3.3. It is the gentler of the two approaches.