Biobío

Biobío refers to both a central-southern region of Chile and its principal river. The Biobío Region, also known as Region VIII, is located along the Pacific coast and its capital and largest city is Concepción. The region is bordered by the O’Higgins Region to the north and La Araucanía to the east, with the Pacific Ocean to the west. It comprises several provinces and many municipalities, with urban life concentrated in the Concepción metropolitan area.

Geography and climate are diverse within the region. The western part features coastal plains and fertile valleys, while the eastern side rises into the Andean foothills. The Biobío River, one of Chile’s longest rivers, runs from the Andes to the Pacific and shapes irrigation and energy infrastructure across the basin. Climate ranges from temperate oceanic near the coast to more humid and cooler conditions inland.

Economy and infrastructure are multifaceted. The region has a strong forestry and wood-products sector, along with fishing, seafood processing, agriculture (fruits, cereals, vegetables), and manufacturing. It contains major ports serving the Concepción–Talcahuano area and the Lirquén complex, supporting regional and national trade. Hydroelectric facilities on the Biobío River, such as Pangue and Ralco, contribute to Chile’s power supply and have influenced regional development.

Education and culture are notable in the region. It hosts the University of Concepción, a leading Chilean university, and the Universidad del Bío-Bío, among others. The Biobío region has a history shaped by Mapuche heritage and later urban and industrial growth centered on Concepción and its surrounding communities.

Note: Biobío may also refer specifically to the Biobío River, which flows through this region from the Andes to the Pacific.