Chamonix ski passes, depending on your choice, allow you to ski freely through the following areas.
Chamonix Le Pas: Brévent-Flagere, Balme, Grands Montets 2765m.
Montblanc Unlimited: Brévent-Flagere, Balme, Grands Montets 3275m., Montenvers Mer de Glace, Aiguille du Midi, Vervier 4 Vallées (Switzerland), Courmayeur (Italy), Megève.