The Guilleries is a mountainous region located in northeastern Spain, primarily within the province of Girona in the Catalonia autonomous community. It is characterized by its rugged terrain, dense forests, and diverse wildlife, making it a popular destination for outdoor activities such as hiking and mountain biking. The area is also known for its picturesque villages and rich cultural heritage. The Guilleries is part of the larger Pre-Pyrenees mountain range and features several notable peaks, including Puig de les Cadiretes. The region is home to various natural parks, such as the Montseny Natural Park, which is recognized for its biodiversity. Additionally, the Guilleries has historical significance, with remnants of ancient trails and structures that reflect its long-standing human presence.