The Rio Aragon Valley leads east from Pamplona into the Aragon Pyrenees, which extend all the way to Andorra. Narrow side roads connect remote, picturesque mountain villages in this thinly populated region. The most beautiful section of the route lies within the Parque Nacional de Ordes y Monte Perdido. The park's countless gorges are home to a wide variety of indigenous plants and rare species of animals, such as the Pyrenean Goat, the Bearded Vulture and the Snow Partridge. Sparkling waterfalls cascade down the Monte Perdido, the 3rd highest mountain in Spain. The park entrance near Torla includes a Visitors Centre, where maps of hiking routes and other useful information is available.