Col du Bac
Pyrenees, France
Gradient:
<4%
4–7%
7–10%
10–12%
>12%
APPROACH ROUTES
Col du Bac is a Category 3 ascent in the Pyrenees, France, topping out at 620 m. The Chalabre approach is the hardest — 6.2 km at 3.9%, 242 m gained, maxing at 9.6%. The steepest kilometre averages 8.8%, around km 2.7. It can also be climbed from Saint-Benoît (3.2 km at 5.2%): 2 measured approaches in all, each profiled kilometre-by-kilometre against Copernicus GLO-30 elevation data. On the Fiets scale it rates 0.9. Spring to autumn brings the steadiest riding, with snow possible in mid-winter.
COL DU BAC
Summit
620m
Approaches
2
Hardest
CAT 3
Hardest side
6.2km