This article is about the town and commune, for the hydroelectric plant see Colbún Hydroelectric Plant, for the company see Colbún S.A..Colbún (Mapudungun: "Cleaning of the land") is a Chilean town and commune in Linares Province, Maule Region. The commune has a population of over 17,000 inhabitants and covers an area of 2,900 km2 (1,120 sq mi), making it the province's largest. Its capital, the town of Colbún, has 3,679 inhabitants (2002 census).