The park preserves some of the largest remaining old-growth spruce forests in the Piedmont region.
The name 'Gran Bosco' refers to the historical importance of the forest for the nearby Fort of Exilles, which utilized the timber for fortifications.
The park contains the 'Sentiero dei Franchi', a historic path purportedly linked to Charlemagne's crossing of the Alps.
It is a key habitat for the black grouse, a bird species sensitive to human disturbance.
The 'ru' irrigation systems found within the park are ancient water management structures used to divert glacial meltwater to crops.
The park's altitude range covers three distinct vegetation zones: the mountain, subalpine, and alpine belts.
Parco Naturale del Gran Bosco di Salbertrand is a protected wilderness area in the Susa Valley, defined by its massive ancient spruce and larch forests. The park spans over 3,700 hectares, ranging in altitude from approximately 1,000 to 2,600 meters above sea level. It serves as a refuge for diverse alpine wildlife, including red deer, roe deer, wild boar, and golden eagles. The terrain is characterized by steep slopes and panoramic vistas looking toward the Ambin and Chaberton massifs. Historic elements include traditional mountain huts and the remains of ancient irrigation channels known as 'ru'. The park is part of the Ente di Gestione delle Aree Protette delle Alpi Cozie system. Its primary ecological focus is the preservation of mature coniferous woodlands that have survived centuries of exploitation. Visitors can access a network of marked hiking trails that connect the valley floor to high-altitude pastures.
The viewpoint near the 'Colle dell'Assietta' road offering panoramic views of the dense spruce canopy against the backdrop of the Susa Valley.
Carry high-altitude gear even in summer as weather conditions can change rapidly in the Susa Valley.
Bring binoculars for wildlife spotting, particularly at dawn or dusk when deer are most active near the forest edges.
Pack all supplies, as there are limited facilities for food or equipment once inside the trail network.
Attempting high-altitude trails without proper topographic maps or after autumn snowfalls.
High-altitude trails may be inaccessible or dangerous due to snow cover from late autumn through late spring.
Stay on marked trails to protect sensitive alpine vegetation; maintain silence to avoid disturbing wildlife.
