grand couloir, couloir du gouter or couloir of death on mont blanc

alpine alps altitude and apline beautiful beauty blanc chamonix classic climb climbing couloir death europe french from glacier glaciers gouter grand high hiking ice massiv midi mont montblan montblanc mort mountain mountaineering mountains natural nature outdoor panoramic path peak picturesque range refuge ridge rock rocky rousse route savoie sunny sunrise tete tmb trekking valley view viewpoint white