The Conservatory of Natural Spaces Rhône-Alpes will contribute to the constitution of a functional framework of forests on the territory of the mountain of Ardèche, by preserving, through identification and land mastery, old forests and rich in biodiversity outside public forests and ENS perimeters. This project, in complementarity with the actions carried out by local actors, will also increase the forest areas in free evolution on the territory, raise awareness among local actors about its challenges of old-growth forests and rich in biodiversity and contribute to the dynamics of knowledge and preservation of these forests at the Massif Central level.