Montseny Biosphere Reserve Historical milestone · Fogars de Montclús, Vallès Oriental, Barcelona UNESCO declared the massif a Biosphere Reserve in 1978, nine years before the natural park designation was approved, in 1987. It protects 30,120 hectares and species such as the Montseny newt, the only endemic vertebrate of Catalonia. 1978 Photo: Josep Salvany i Blanch (Public domain) What to see and do in Fogars de Montclús