La Marmotte

From Bourg d’Oisans follow the RD1091 towards Grenoble.

In Rochetaillée take the D526 to Allemont.

Cycle through Allemont and take the road up to the ‘col du Glandon’.

From Rivier d'Allemont follow the road (down until the river and athletic rise to the dam of Grand' Maison).

From the dam the slope softens until the pass.

Turn left onto the D927.

Go down the D927 to St Colomban des Villards then St Etienne and St Marie de Cuines.

Join Saint Jean de Maurienne by D74.

From Saint Jean, the D1006 will take you to Saint Michel de Maurienne.

From Saint Michel you should follow the D902 for the col du Télégraphe (1,570 m).

Go down to the ski resort of Valloire.

Here you are finally at the bottom of the legendary ascent of the col du Galibier.

From this pass go down towards Le Lautaret.

Follow the RD1091 to Bourg d’Oisans, via La Grave, the Chambon dam and Freney d'Oisans.

And to round it off nicely, cycle up the road to Alpe d’Huez and its 21 hairpin bends...

and ... Congratulations!