This UNESCO Biosphere Reserve is located in the eastern sector of the Cantabrian Mountain Range, limits to the south with Castilla León and covers the upper basin of the Sella and the Ponga River, between National Parks of Picos de Europa and Redes.
The exuberant beech, chestnut and oak forest, flanked by mountains up to 2000m high, such as Peña Ten (2141m), Maciédome (1899m) or the awesome Tiatordos (1951m) together with the relative isolation of the area, make Ponga a magical and unforgettable place.
This unknown pearl is one the last refuges of capercaillie, brown bears and numerous birds such as the golden eagle, the griffon vulture or the egyptian vulture.