The wetland zone

From the pastoral hut at Tardieu, the track, which is horizontal at this point, overlooks the great plateau where the winding Ubayette sparkles.
A few thousand years ago, you would not have had to go much further to find a deep lake. This great flat area with its tender green hues was covered by a lake, which was hollowed out by the Lauzanier glacier. It was not very deep and was filled in by the deposits which came off the brittle slopes.