The 25 longest runs in the Alps. First is Cascades at Le Grand Massif, a 10.6 km descent with 1,603 m of vertical.
Total length of each named run (adding up its sections) in OpenStreetMap, for graded runs from green to black.
Cascades, at Le Grand Massif, with 10.6 km of descent. Next come Escargot (Espace Haute Maurienne Vanoise, 10.4 km) and Pass Thurn Direktabfahrt (KitzSki, 9.8 km).
Total length of each named run (adding up its sections) in OpenStreetMap, for graded runs from green to black. Data from OpenStreetMap via OpenSkiMap.