
Taking its source at Mount Genèvre in the Hautes-Alpes, the Durance continues its course in the Alpes-de-Haute-Provence to then establish the border between Bouches-du-Rhône and Vaucluse. The various hydroelectric constructions (like the huge dam of Serre-Ponçon) have significantly reduced its flow and its natural environment. The challenge today is to reconcile the production of electricity from renewable energy and the protection of the ecosystems of the stream.