The Picos de Europa mountain range is located in northern Spain and spans the regions of Cantabria, Castilla y Leon, and Asturias. It contains heights over 2,500 meters and occupies an area of 64,660 hectares. The range is divided into three massifs and contains the Cares Route, a unique 21km path carved into limestone rocks alongside the Cares River that connects the towns of Posada de Valdeon and Poncebos. The area is home to a variety of wildlife like roe deer, boar, wolves, and golden eagles, as well as over 2,000 plant species including oak, chestnut, and holly trees.