The National Park Aigüestortes and lake Sant Mauriciis a protected natural area of the Lleida high Pyrenees. It is one of the twelve Spanish National Parks and the only one in Catalonia. It was declared a national park on October 21, 1955. It’s located in the central part of the Sierra Pirenaica between the regions of Upper Ribagorça, Pallars Sobirá, Aran Valley and Pallars Jussá. The core of the park is in the municipalities of Valle de Boi and Espot. The geography of the park consists of high mountains because much of the land rises above 1.000 meters with peaks over 3.000 meters high.