Ansó is a town and municipality located in the province of Huesca

Huesca (province)

Huesca , officially Huesca/Uesca, is a province of northeastern Spain, in northern Aragon. The capital is Huesca.Positioned just south of the central Pyrenees, Huesca borders France and the French Departments of Pyrénées-Atlantiques and Hautes-Pyrénées...

, Aragon

Aragon

Aragon is a modern autonomous community in Spain, coextensive with the medieval Kingdom of Aragon. Located in northeastern Spain, the Aragonese autonomous community comprises three provinces : Huesca, Zaragoza, and Teruel. Its capital is Zaragoza...

, Spain

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

. According to the 2004 census

Census

A census is the procedure of systematically acquiring and recording information about the members of a given population. It is a regularly occurring and official count of a particular population. The term is used mostly in connection with national population and housing censuses; other common...

 (INE

Instituto Nacional de Estadística (Spain)

The National Institute of Statistics is the official organisation in Spain that collects statistics about demography, economy, and Spanish society. Every 10 years, this organisation conducts a national census. The last census took place in 2001....

), the municipality had a population of 523 inhabitants. The municipality includes the towns of Ansó and Fago (7 km. apart).

The municipality includes the whole valle de Ansó in the Pyrenees

Pyrenees

The Pyrenees is a range of mountains in southwest Europe that forms a natural border between France and Spain...

. Ansó is located on the left side of the Veral river, which descends from mountains that are more than 2,000 meters high.