Fond D’Aussois Basin

A glacial basin is the name give to the area dug out by a glacial valley. Once the glacier recedes, this depression is generally occupied by a lake of variable size which gradually fills up with fluvio-lacustrine alluvium until it forms a plateau. Here, certain areas retain their swamp-like properties with typical plants such as swertia perennis. These rich and flat grasslands have long been appreciated for livestock farming as evidenced by the presence of old alpine huts.