AdventurousDrone created this beautiful drone video of a well known glacier in the French Alps. It's calle Bossons Glacier, and it's part of the Mont Blanc Massif. It's sourced from one of the sides of the great Mt. Blanc (the tallest peak of the Alps), and it ends some distance short of the fabled town of Chamonix. Bossons has the largest altitude drop of any glacier in the Alps. The glacier has shrunk considerably in recent decades; even a few centuries ago it extended all the way to Chamonix.