Col du Bac
from Chalabre · Pyrenees, France
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 Chalabre, this side runs 6.2 km at 3.9% average — 242 m up to the 620 m summit, maxing at 9.6%. Its steepest kilometre averages 8.8% near km 2.7. On the Fiets scale this side rates 0.9. It is the gentler of the two approaches.
Surface
Asphalt100%
Verified from OpenStreetMap surface data along the climb.
FROM CHALABRE
Distance
6.2km
Elevation gain
242m
Avg gradient
3.9%
Max gradient
9.6%
Summit
620m
Category
CAT 3