The National Park is considered by UNESCO as a World Biosphere Reserve, as it has a rare landscape beauty, has an ecological value, ethnographic value and diversity of fauna (bucks, garrans, wolves, birds of prey ...) and flora (pines, Yew, chestnut, oak and various plants).

Its territory presents several symbols of the past, with emphasis to the Via Romana, which linked Braga to Astorga, and the castles of Castro de Laboreiro and Lindoso. And there are many community villages, Vilarinho das Furnas being the best known, but since 1971 it has been submerged by the reservoir of the dam with the same name and can be seen during periods of drought.