The Río Cauca is one of the major rivers in Colombia, flowing through the western part of the country. It is approximately 1,350 kilometers long and serves as a vital waterway for transportation and irrigation. The river originates in the Andes mountains and eventually merges with the Río Magdalena, one of Colombia's most important rivers. The Río Cauca basin is rich in biodiversity and supports various ecosystems. It is surrounded by several cities, including Cali and Medellín, which rely on the river for water supply and economic activities. The river also plays a crucial role in agriculture, providing irrigation for crops in the region.