Expert routes - Alpe d'Huez to La Boucle des Cols

With two big climbs and an average of 13% this is a tricky route but once again the views make it worth while.

From Bourg-d'Oisans follow the RN91 towards Grenoble. 

When you get to Rochetaillée, follow the D526 to Allemont. 

Cycle towards Le Rivier d'Allemont - Grand Maison. 

Then cycle along the Grand Maison barrage, turn left and follow the road to the Col du Glandon (D927).

Then go on to Sainte-Marie-de-Cuines. From Sainte-Marie you can take the D74 to Saint-Jean-de-Maurienne. 

Then follow the D80 to the Col du Mollard - Saint-Sorlin-d'Arves, then follow the D926 to the 'Croix de Fer'. 

Go back down to Allemont on the D926.