The EDF Trail des Vallees d'Aigueblanche is a two-day trail running series in Aigueblanche, Savoie, France, held during an October weekend. The race distances range from a short 4.89 km mountain run to a 51.89 km ultra-distance trail race, catering to runners seeking either a steep climb or a long day in the mountains.
The most demanding routes feature significant elevation gain: TERAWATT 3 spans 51.89 km with 3,179 m of climbing, and Tournee Generale covers 48.9 km with 3,241 m of ascent. The 23.95 km races, Echapeaux Belle and Gigawatt, each include 1,358 m of elevation gain. The steepest short distances are Pelton 2000, with 1,933 m of climbing over 10.7 km, and TERAWATT day3, gaining 965 m in just 4.89 km.