- Alt : from 890m. to 2045m.
- 450 habitants
- La Chartreuse, Heritage house
- Church in Aillon-le-Jeune village
- Farms
- Cheese dairy "Fromagerie du Val d'Aillon"
- The "Salt Flats and Glaciers Trails" at Aillons-Margériaz 1400
- Potholer's Hike "La Tanne du Névé"