Col de la Colombière is a high mountain pass at an elevation of 1.613m (5,292ft) above the sea level, located in the Alps in the department of Haute-Savoie in France. The pass is one of the Tour de France classics and is open from June to October. The pass is traversed by the scenic Route des Grandes Alpes.
The road over the pass is asphalted. It’s called D4 and links Cluses in the Arve valley to the north-east with Le Grand-Bornand and La Clusaz in the Borne valley to the south-west. At the summit there’s a bar-restaurant, a souvenir shop and a little church.
The pass has been climbed several times by the Tour de France bicycle race. There are 2 routes to reach the summit. Starting from Le Grand Bornand, the ascent is 11.7 km long. Over this distance, the elevation gain is 690 meters. The average percentage is 5.9 % and the maximum slope is 12 %. And starting from Scionzier, the ascent is 16.3 km long. Over this distance, the elevation gain is 1.108 meters. The average percentage is 6.8 % and the maximum slope is 12 %.