Colle di Joux is a high mountain pass at an elevation of 1.640m (5,380ft) above the sea level, located in the Aosta Valley in northwestern Italy.
The road over the pass is called Rue Colle di Joux. It’s asphalted. The pass has been climbed in the Giro d’Italia.
There are 2 routes to reach the summit. Starting from Saint Vincent, the ascent is 15.6 km long. Over this distance, the elevation gain is 1.065 meters. The average percentage is 6.8 %. And starting from Verrès, the ascent is 21.82 km long. Over this distance, the elevation gain is 1.253 meters. The average percentage is 5.7 %. The maximum slope is 12 %.