Parc de la Vallée aux Loups, Historical park in Châtenay-Malabry, France.

The Domaine départemental de la Vallée-aux-Loups covers 56 hectares in Châtenay-Malabry, owned by the Hauts-de-Seine departmental council. It combines four elements: the arboretum, Chateaubriand's house and park, the Île Verte and the wooded park. The ru d'Aulnay flows through it in the open air. A paved path with a low line of stone blocks runs through grass and trees, past a signpost on the left.

François-René de Chateaubriand acquired the property in 1807 after being exiled from Paris for criticizing Napoleon Bonaparte. He resided there until 1818, writing major works during this period. The estate changed hands several times during the 19th century before transformation into public grounds in the 20th century. The municipality gradually acquired different sections, developing them into a cohesive heritage site open to visitors.

The name Vallée-aux-Loups long predates Chateaubriand; he noted the wolves that gave the valley its name. The Maison de Chateaubriand, listed as a monument historique since 1964 and classified in 1978, keeps his study and the tower he had built. The estate has been a Jardin remarquable since 2004, and the ru d'Aulnay still flows in the open through the grounds.

The property divides into multiple sections with varying schedules: the Arboretum, residence museum, and Green Island each maintain different opening hours and admission policies. Accessible via public transportation from Paris with a subsequent walk from Châtenay-Malabry station. Some paths accommodate wheelchairs while others present challenges due to natural terrain. Parking facilities and visitor amenities are available nearby, with restrooms located at the main entrance.

The 56-hectare estate takes its name from wolves: the Val d'Aulnay was a wooded valley where wolves were still reported, and the name Vallée-aux-Loups survived. The Aulnay stream crosses the grounds in the open air, unlike the rest of its course, which runs underground upstream and downstream. The Chateaubriand house was listed as a monument historique on 24 January 1978, after a first inscription on 31 January 1964.