The Bio-Bio River is one of the longest rivers in Chile, stretching approximately 380 kilometers. It originates in the Andes Mountains and flows through the Biobío Region before emptying into the Pacific Ocean. The river is significant for its role in agriculture and hydroelectric power generation in the region. The Bio-Bio River is also known for its rich biodiversity and scenic landscapes. It passes through various ecosystems, supporting numerous species of flora and fauna. Additionally, the river has historical importance, as it served as a natural boundary during the Mapuche conflicts in the 19th century.