Col du Glandon from Barrage du Verney in the Savoie
Col du Glandon is in the Savoie area of the Alps at an altitude of 1924m, and connects Bourg d’Oisans with La Chambre.
On paper, the climb from this side does not look too challenging at an average of 4.8%; there are however a couple of downhill sections, breaking the ascent into 3 distinct sections. During the two hardest sections of the climb the gradient reaches around 11%. The first one is around 2.5km long and starts 20km from the top, and the second one is slightly longer, starting right after the first descent.
The views you will encounter during the ascent and at the top of Col du Glandon are spectacular.
The col has been crossed by the Tour de France 13 times since 1947, though often in conjuction with the Col de la Croix de Fer.
Height at start: 772m
Height at finish: 1924m
Average gradient: 4.8%
Maximum gradient: 11%