while the Fascist government built here part of its underground Alpine Wall. All these fortifications are now in French territory after the boundaries revision in 1947 allowing Savoy to get its historical territory back. The Lac Du Mont Cenis is an artificial dam that was constructed in 1921 on top of the original road and border crossing. It feeds two hydroelectric power plants. The lake is occasionally drained for maintenance. Cycling The pass of Mont Cenis has been featured 5 times in the Tour de France. It has been classified hors-catégorie (yielding the highest number of points in the King-of-the-Mountains classification) since 1999. For the 5 years that the pass was on the Tour, the following cyclists have crossed the pass in the lead: 1949 - Giuseppe Tacca, France 1956 - Federico Bahamontes, Spain 1961 - Emmanuel Busto, France 1992 - Claudio Chiappucci, Italy 1999 - Dimitri Konyshev, Russia In the 2013 Giro d'Italia, the pass was featured in the 15th stage on May 19, 2013. Climate Mont Cenis has a subarctic climate (Köppen climate classification Dfc). Due to the elevation of the top of the mountain at , the temperature here is significantly lower than that of the plains. Even the warmest months of July and August, the temperature rarely rises above , and often falls below minus in severe winter. Around the world, there are also Zoige and Litang areas with similar climatic characteristics here. The average annual temperature in Mont Cenis is . The average annual rainfall is with May as the wettest month. The temperatures are highest on average in July, at around , and lowest in February, at around . The highest temperature ever recorded in Mont Cenis was on 26 June 2019; the coldest temperature ever recorded was on 4 February 2012. Points of interest Jardin botanique de Mont Cenis, an alpine botanical garden See also List of highest paved roads in Europe List of mountain passes Notes References External links Profile on climbbybike.com Both Sides: Cycling Map, Profile, and Photos Géologie aux alentours du col du Mont-Cenis Montcenis Comment en 1812 le pape Pie VII faillit mourir à l'hospice du Mont-Cenis. Chemin de Fer du Mont-Cenis Lac du Mont-Cenis Col du Petit Mont-Cenis Mont Cenis on Google Maps (Tour de France classic climbs) Mountain passes of Auvergne-Rhône-Alpes Mountain passes of the Alps Mountains of Savoie France–Italy border crossings