In the southeast of the province of Burgos, the Demanda mountain range overlooks the Picos de Urbión, housing the Neila Glacial Lagoons Natural Park.

Due to the nature of its origins, this high mountain landscape is one of the most unique and beautiful in Castile and León. At the lowest levels, the Neila valley presents a different physiognomy to the rest of the valleys of the Sierra de la Demanda due to its isolation and, although maintaining common elements with other areas of the environment such as the extensive Scots pine forests, it preserves values own and differentiating landscapes.

As you ascend to heights close to two thousand meters in altitude, the landscape shows the scars of its glacial origin, among which the set of lagoons with accentuated chromatic contrasts stand out, forming some of the most interesting natural spaces in Spain. Its uniqueness has caused the development of a great diversity of flora and fauna, as well as specific aquatic ecosystems closely linked to glacierism.