Colle Blegier is a high mountain pass at an elevation of 2.381m (7,811ft) above the sea level, located in the Parco naturale del Gran Bosco di Salbertrand, in the Piedmont region, Italy. Col Blegier is the fourth 'pass' on the Assietta ridge route.
The Colle Blegier is a pass at the Assietta Road and it lies between Mount Genevris and the Colle Lauson. Currently, during the holiday months of July and August, bans on Wednesday and Saturday 9-17 clock are in effect. There is a speed limit to 30 km / h and no overtaking and no parking outside the parking areas. The road over the pass, called Ser Gountard-Col Blegier, was built in 1890 by the 3rd Reggimento Alpini, to reach the area of Genevris housing, the observatory and the barracks.