The Sierra de Montseny is a mountain range located in Catalonia, Spain. It is part of the Montseny Natural Park, which was designated a UNESCO Biosphere Reserve in 1978. The range features diverse ecosystems, including forests, rivers, and unique wildlife, making it a popular destination for nature lovers and hikers. The highest peak in the Sierra de Montseny is Turó de l'Home, standing at 1,706 meters. The area is known for its rich biodiversity, with many endemic species of flora and fauna. Visitors can explore various trails and enjoy stunning views of the surrounding landscape, including the nearby Montserrat mountain range.