The Glacial valley

The particularity of this valley is that it shelters both a white glacier which stays covered with ice and a black glacier composed of ice covered with rocks...  Their glacial tongues fluctuate depending on climatic conditions, which greatly effects the shape of the landscape. A lithography dating from 1854 shows the two glaciers joined at Pré de Madame Carle, ten years before the first ascent of the Barre des Ecrins. They white glacier lost more than 2 kilometers in length between 1885 and the 2000s.