Ordesa National ParkValle de Tena
The National Park is part of the Pyrenees and Monte Perdido National Park which was declared a World Heritage site in 1997 by the UNESCO. Since 1977, a part of the park has also been inside the Ordesa-Viñamala Biosphere Reserve.
The Ordesa Valley was declared National Park in 1918. When it was created, it barely exceeded 2,000 hectares. Today it extends over 15,608 hectares and has been incorporated to it the spectacular valleys of Añisclo, Pineta and the Gorges de Escuaín.
The Valley of Ordesa, which has given its name to the Park, is crossed by the Arazas river, with cold and turbulent waters, whose course is dotted with numerous waterfalls. Through the impressive Añisclo Valley, characterized by its precipices, runs the river Asó. The Valley of Tella, focuses its attraction on the fantastic gorges of Escuaín, which enclose the river Yago and finally the Valley of Pineta crossed by the river Cinca.
The forests of this National Park are constituted mainly by wild pine, black pine, beech and spruce plus other species of shrub. In the high mountain can be located the "edelweiss" also called snow flower, tiny and velvety flower of long and pointed leaves.
Among the animal species, the sarrio or chamois is the most numerous. In the Pelay belt, in the Ordesa Valley, there are also wild boars, bearded vultures, eagles, etc.
In the Ordesa Valley, at the entrance, there is an Interpretation Center, whose visit is very interesting before entering the Park.