The natural park area covers 30,120 hectares, and is distributed among 18 municipal
areas which belong to three different counties (Osona, La
Selva and El Vallès Oriental). 90% of the park area
is private property. The Natural park of Montseny is managed
by the local government bodies of Girona and the Diputació
de Barcelona and is subject to the regulation of the 1977
Special Plan. .