The Fond d’Aussois and the dams

The two dammed lakes occupy the site of two ancient alpine pastures. A project for a third lake was to be used to flood the Fond d´Aussois pasture. These three successive plateaus are the result of fillings by the glacial basin. Three shallow lakes were to exist at the melting of the glaciers. They were filled by fluvio-lacustrine deposits to then become these hospitable alpine pastures. The photo shows the two alpine pastures of Plan d´Aval and Plan d´Amont crossed by the gentle mountain stream of Saint-Benoit.