The Conservatoire d’Espaces Naturels de Bourgogne (CENB) is an association law 1901, declared of general interest, one of the main tasks of which is the management and protection of natural habitats and biodiversity. A privileged player in preserving Burgundy natural environments (mares, lawns, etc.) or species with high stakes throughout the territory (in partnership with a network of local actors), CENB manages 174 sites in the four departments, through land acquisitions or management agreements. The association is also manager or co-manager of three national nature reserves: the Truchère-Ratenelle (71), the Bois du Parc (89) and the Loire Valley (58). CENB’s activities are set out in 4 broad guidelines: know: acquisition of scientific knowledge on Burgundy natural heritage, prerequisites for the implementation of protective measures; protect: preservation of natural areas through construction management, land management and/or regulatory protection; manage: development of scientific management framework documents and follow-ups; raise awareness: implementation of guided tours, discovery trails, various communication materials to raise public awareness of the preservation of the natural heritage. As part of its activities, CENB wishes to acquire plots located in the territories of Talant and Plombières-les-Dijon (total area of 21.2382 ha). These parcels