Aigüestortes i Estany Sant Maurici

National Park

Great mountains in Pyrenees. Ancient boreal forest and beautiful lakes.

The Aigüestortes i Estany de Sant Maurici National Park was the foremost National Park of high mountains in the Pyrenees, declared in 1969.
He is one of the representatives of the alpine boreal mountain of the Pyrenees where we find the habitats typical of the alpine and boreal environments and their associated fauna and flora.

General information


Main office
Ca de Simamet
C/ de les Graieres, 2
25528 Boí
Tel.: +(34) 973 69 61 89
Fax: +(34) 973 69 61 54


Other Offices

Casa del Parc
C/ de Sant Maurici, 5
25597 Espot
Tel/fax: +(34) 973 62 40 36

Centre d’informació de Llessui
Ecomuseu dels Pastors de la Vall d’Àssua
Escoles de Llessui, s/n
25567 Llessui (Pallars Sobirà)
Tel.: +(34) 973 621 798
Fax: +(34) 973 621 803

Centre d’informació de Senet
La Serradora
Carrer del Port, 10
25553 Senet (Alta Ribagorça)
Tel.: +(34) 973 698 232
Fax: +(34) 973 698 229


Aigüestortes i estany de Sant Maurici, Lleida, Spain


The Aigüestortes i Estany de Sant Maurici National Park is one of the most spectacular landscapes of the Pyrenees. Its central nucleus is formed by a large mass of granite rocks about 300 million years old, which thanks to the forces of tectonics on the one hand and erosion on the other, emerged on the surface .
These rocks are surrounded by others of sedimentary origin, slates and limestone mainly, which underwent processes of metamorphism and folding during the Paleozoic (Primary Era) and that occupy the ends of the Park.
Much later, during the Tertiary era and during the Alpine orogeny, the forces that caused the definitive formation of the Pyrenees, they returned to work on these same materials that experienced more deformations and important fractures that affected a great way important in the incipient formation of the current relief.

The climate of the Park is very conditioned by several factors, such as the altitude, which ranges from 1,200 to 3,029 m, and the different orientation of their valleys, which facilitate the existence of significant differences between the various valleys

The National Park is in a high mountain area, with altitudes ranging from 1,200 to 3,029 m. The weather is characterized by long and rigorous winters, where snow is present a good part of the year and temperatures drop easily below 0ºC. In winter, the ponds are frozen and nature goes into rest. Snow avalanches are a very destructive phenomenon that we must keep in mind if we want to visit the Park in winter. In the Gento lake, in addition to 2,100 meters high, the lowest temperature in Spain was recorded on February 2, 1956: -32ºC.

As of May, the lowest parts of the Park tend to be snow-free, but this is still present in the hills until well into June, which can make traffic difficult for visitors who venture to make crossovers at the end of spring and early summer.

Summers, on the other hand, are short and with mild temperatures, even cold at night. During the hot summer days it is frequent the growth of clouds of daytime evolution that can discharge sharp waterfalls and lead to storms with electric appliances more or less commonly. The change in time can be quite sudden and must be foreseeable.

The climatology of the Park is conditioned by several geographic and morphological factors, such as the different orientation of the valleys, which facilitate the existence of different microclimates: Most fronts and atmospheric depressions reach the Pyrenees from the Atlantic Ocean and Both the valleys open to the north and the west have an important oceanic influence that causes a more humid climate, with more abundant precipitation and a greater incidence of fog. The spaces that look to the east or the south present a clear Mediterranean influence, with drier climates in the summer and less abundant and irregular precipitations. In the high areas, the climate is more uniform and the precipitations of water or snow can be around 1,500 mm per year.

Apart from this climatic duality, there are many factors that cause the existence of climatic tendencies and that cause that almost each valley has a particular climate. In the existence of each microclimate, factors such as the orientation of the valleys, the altitude of the hollows that form them, the most common direction of the wind and the frontal surfaces, are involved.


Estany Llong i Portarró d’Espot des d’Aigüestortes


Difuculty: Easy
Time: 4h.
Drop Off: 600m
Period: The whole year
Childrens: Apt

Short description

Recorregut de 17,5 km de longitud (anada i tornada) que recorre la vall de Sant Nicolau, al Parc Nacional d’Aigüestortes i Estany de Sant Maurici. Des d’Aigüestortes pugem pel fons de la vall, enmig de boscos, fins a l’estany Llong. Continuem vall amunt fins al bonic estany Redó i ascendim al Portarró d’Espot: el pas natural cap a la vall de Sant Maurici. Fem la tornada al planell d’Aigüestortes pel camí més curt, passant a prop de la cabana del Portarró i del Pi de Peixerani.

Prat de Cadí


Difuculty: Easy
Drop Off:
Period: The whole year
Childrens: Apt

Short description