The Madriu-Perafita-Claror Valley was declared World Heritage by UNESCO in 2004 thanks to the value of its landscape. The preservation of a large valley in its entirety is an unusual event and this is the only case that is found in the Pyrenees.

It is in the south-east of Andorra and covers a surface area of 4,247 hectares. It coincides with the basin of the River Madriu, which represents about 10% of the surface area of Andorra, and is distributed between the parishes of Encamp, Andorra la Vella, Sant Julià de Lòria and Escaldes-Engordany.

A peripheral protection area of 4,092 hectares has been defined around this open space. The sum of the surface areas of the central zone plus the peripheral zone occupy almost a fifth part of the Andorran territory.

Approximately 99% of the surface area of the Madriu-Perafita-Claror Valley is communal property. The remaining 1% belongs to some thirty private owners and covers little more than 42 hectares of land at the bottom of the valley, in the parish of Escaldes-Engordany.

(Source: Andorra Government)