Colle San Carlo
from La Thuile · Aosta Valley, Italy
Gradient:
<4%
4–7%
7–10%
10–12%
>12%
GRADIENT PROFILE
<4%4–7%7–10%10–12%>12%
Km-by-km average gradient from Copernicus GLO-30 elevation data along the road.
Starting in La Thuile, this side runs 7.3 km at 7.1% average — 517 m up to the 1 951 m summit, maxing at 11.7%. Its steepest kilometre averages 11.5% near km 4.9. On the Fiets scale this side rates 4.6. It is the gentler of the two approaches.
Surface
Asphalt97%
Gravel3%
Verified from OpenStreetMap surface data along the climb.
FROM LA THUILE
Distance
7.3km
Elevation gain
517m
Avg gradient
7.1%
Max gradient
11.7%
Summit
1951m
Category
CAT 1