The Steepest Climbs in the French Alps, from Galibier to La Tougnète

Which Alpine climbs are *really* the toughest? We dived into the data from CyclingCols and compiled a list of the steepest climbs, including a separate list for climbs with Tour de France history.
Oisans Col Series: These are the 9 options for car-free cycling up the tourcols
From 1 July to 27 August 2025, nine well-known and lesser-known cols in the French Alps in the Oisans region will be completely closed to motorised traffic on fixed mornings. That means: pure climbing fun without car noise or exhaust fumes. Participation is free, no registration required. There are more such alternatives in France, making [...]