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 and dolomite rock formations. The area is known for its diverse flora and fauna, making it a popular destination for nature enthusiasts and hikers. The range reaches an elevation of approximately 1,430 meters at its highest peak, Agarreko, and is characterized by its rugged terrain and scenic landscapes. The Sierra De Aralar is also home to several traditional Basque villages, which contribute to the region's cultural heritage and tourism.