Les Trois Vallées, or The Three Valleys, is the largest ski area in the world connected solely by ski lifts and slopes. It has 183 ski lifts and more than 600 km (410 miles) of ski slopes, resulting in 18.5 km² of groomed runs. In addition, there are 120 km for cross-country skiing.
Les Trois Vallées includes the following ski resorts: Val Thorens, Méribel, Courchevel, Les Menuires, Orelle, St-Martin-de-Belleville, La Tania and Brides-les-Bains.
Besides these, a weekly lift ticket in Les Trois Vallées gives you a choice to ski one day in other two neighboring systems: Paradiski (Les Arcs, La Plagne) and Espace Killy (Val d'Isère and Tignes).