The Sierra de Aralar is a mountain range located in the Basque Country and Navarre regions of northern Spain. It is part of the larger Pyrenees mountain system and features a mix of limestone peaks, valleys, and lush forests. The area is known for its rich biodiversity, including various plant and animal species, making it a popular destination for nature enthusiasts and hikers. The range is also home to the Aralar Natural Park, which protects its unique ecosystems and landscapes. Visitors can explore numerous trails, enjoy stunning views, and discover historical sites, such as ancient dolmens and churches, that reflect the region's cultural heritage.