The major river that flows through the capital of Argentina is the Rio de la Plata. This river estuary is formed by the confluence of the Paraná and Uruguay rivers and is essential for the economy and transport of Buenos Aires, the capital. The Rio de la Plata serves as a critical shipping route for international trade and fishing industries. Additionally, it offers recreational activities for locals and tourists alike. The river's significance stretches beyond economic aspects; it also contributes to the cultural identity of Buenos Aires and surrounding areas, featuring beautiful waterfronts and historical significance.