Coll de Boix

Southern Pyrenees, Spain

Gradient:

<4%

4–7%

7–10%

10–12%

>12%

Approach route

APPROACH ROUTES

Coll de Boix

from Coll de Nargó

CAT 2

Distance

16.5km

Elevation

728m

Avg %

4.4%

Max %

17.8%

<4%4–7%7–10%10–12%>12%

Coll de Boix

from Cambrils

CAT 3

Distance

3.5km

Elevation

194m

Avg %

5.6%

Max %

10.2%

<4%4–7%7–10%10–12%>12%

Coll de Boix is a Category 2 cycling climb in the Southern Pyrenees, Spain, cresting at 1 257 m. Its hardest ascent, from Coll de Nargó, covers 16.5 km at 4.4% average, gaining 728 m, with ramps up to 17.8%. The steepest kilometre averages 11.5%, around km 8. It can also be climbed from Cambrils (3.5 km at 5.6%): 2 measured approaches in all, each profiled kilometre-by-kilometre against Copernicus GLO-30 elevation data. On the Fiets scale it rates 3.5. Late spring through autumn offers the most reliable conditions on the pass.