The Sierra de Cantabria is a mountain range located in northern Spain, primarily within the Basque Country and La Rioja regions. It stretches approximately 100 kilometers and is known for its stunning landscapes, diverse flora and fauna, and rich geological formations. The range is a popular destination for outdoor activities such as hiking, birdwatching, and photography. The mountains are characterized by their rugged peaks and deep valleys, with the highest point reaching around 1,500 meters. The Sierra de Cantabria also plays a significant role in the local climate, acting as a barrier that influences weather patterns in the surrounding areas.