Below the mountain passes lies one of the biggest dams in Europe, the Lac de Grand Maison.
The Grand’ Maison Reservoir extends over the villages of Vaujany and de Saint-Colomban-des-Villard… Work began on the dam in 1978 and was completed seven years later. Commissioning took place in 1988 and since then, the hydroelectric power station has been the most powerful in Europe.
2 iconic mountain passes for cyclists:
Featuring in both the Tour de France and La Marmotte, these 2 cols are unmissable experiences for experienced cyclists. The Tour de France has featured these passes no fewer than 15 times! It’s hard work cycling up them but the exhaustion of cyclists is more than compensated for by the beauty of the surrounding scenery.