The Sierra de la Cebollera is a mountain range located in the La Rioja region of northern Spain. It is part of the larger Sierra de la Demanda and is known for its diverse ecosystems, including forests, meadows, and rocky outcrops. The area is popular for outdoor activities such as hiking, birdwatching, and nature photography. This mountain range is also home to various wildlife species, including deer and numerous bird species. The Cebollera Natural Park, established in 1996, aims to protect the unique flora and fauna of the region while promoting sustainable tourism and conservation efforts.