The Cantabrian Mountains are a mountain range located in northern Spain, stretching approximately 200 kilometers from the Picos de Europa in the east to the Basque Country in the west. This range is known for its rugged terrain, deep valleys, and diverse ecosystems, making it a popular destination for outdoor activities such as hiking and climbing. The mountains are primarily composed of limestone and are home to various wildlife, including species like the Cantabrian brown bear and the Iberian wolf. The region also features picturesque villages and rich cultural heritage, reflecting the traditions of the local communities that inhabit the area.