Col de la Colombière

This 16km climb averages 6.8% but has a real sting in the tail as Curistas found out in 2016 and can look forward to again in 2021. The final 4km is barren and mountainous with gradients all above 9% and stretches at 11%.

The Colombière is a Tour regular, featuring 22 times, most recently in 2018, but its role is normally to sap the legs of the peloton before they head to more famous summit finishes. Some famous and infamous (Pantani, Landis) names have led over the Colombière, but the only Brit to do so was Barry Hoban back in 1968.