The 피레네 산맥, or Pyrenees Mountains, form a natural border between 프랑스 and 스페인. Stretching approximately 491 kilometers, they are known for their stunning landscapes, including rugged peaks, deep valleys, and diverse ecosystems. The highest peak, Aneto, reaches an elevation of 3,404 meters. The Pyrenees are popular for outdoor activities such as hiking, skiing, and mountain biking. The region is also home to several national parks, including Ordesa y Monte Perdido in 스페인 and Pyrenees National Park in 프랑스. These parks protect unique wildlife and offer visitors a chance to experience the natural beauty of the mountains.