Los Valles de Omaña y Luna Biosphere Reserve

UNESCO Biosphere Reserve, inscribed 2005, in Spain. The region of Valles de Luna y Omaña is in the north-west of León Province in northern Spain, including the municipalities of Sena de Luna, Barrios de Luna, Soto y Amío, Murias de Paredes, Riello and Valdesamario. Elevations exceed 2,000 m in the south-west, in the Sierra de la Cañada mountain complex. Omaña is surrounded by mountain chains that mark the contact between the Cantabrian mountain range and the Montes de León. The region includes the Luna and Omaña rivers, which give rise to a succession of fertile valleys and narrow passages.