Aigüestortes i Estany de Sant Maurici National Park (Catalan: 'Parc Nacional d'Aigüestortes i Estany de Sant Maurici') is the only national park in Catalonia, Spain. A wild mountain region in the Pyrenees, with peaks rising to 3,017 m (Besiberri Sud) and with nearly 200 lakes, many of them of glacial origin, the park comprises: * the core area (141 km²) * a peripheral or buffer zone surrounding the park (267 km²).
The park has an elevation range from 1,600 to 3,000 metres and contains four major vegetation zones: lower montane, upper montane, subalpine and alpine.
It has a great variety of alpine vegetation, including dark-coniferous mountain forest (fir, mountain pine) and subalpine pine forest. The fauna includes Pyrenean chamois, marmot, ermine, roe deer, among other mammals and numerous birds (Black Woodpecker, Common Crossbill, Lammergeier, Golden Eagle).
The park was created in 1956. Its administrative seats are in Espot and Boí. The park is mainly located in the comarques of Pallars Sobirà and Alta Ribagorça.