The Vallée Blanche route on Mont Blanc is a 20km backcountry ski descent that takes most people all day. It starts at the Aiguille du Midi at 12,600ft and ends back in Chamonix (hopefully where you parked) at 3,200ft elevation. It is characterized by an impressive roped-in entry along a steep ridge, a huge landscape full of ice blocks the size of office buildings, jagged peaks, wide valleys and a massive (though receding) glacier.
For “Saveur the Journey’s” Ski Vacation in France trip (March 3-11, 2017) the Vallée Blanche descent was an add on option that everyone in our group opted for. Many people said it was the highlight of a highlight filled trip (great food, bottomless powder, amazing people, regal accomodations). I wrote a trip report about our descent that was published on a backcountry skiing blog called Wildsnow. You can see the full trip report with some amazing pictures here: