If you want to ski down the mountain, you'll need to reach the top of it first. Jump on Stafal-SantAnna Cable Car and enjoy the ride up.
To visit this mountainside transportation system, find your way to Gressoney-la-Trinite. You'll find plenty of other things to see and do in this area, including Monterosa Ski, Champoluc Gondola, and Champoluc - Crest.