The gorges of Malpasset

"In the last 2 million years, the glaciers have eroded the valleys by giving them a typical ""U"" shape. The valley of Isère is a fine local example. By contrast, when the rocks are harder, glacial rock bars are formed, such as the gorges of Malpasset or those of the Daille. It is then that the erosion of the stream below and upstream of the glacier takes over. The cliff screes of the rock bar end up accentuating this embankment."