The river that runs through the city of Buenos Aires is the Riachuelo River. Although the city is most famously associated with the nearby Paraná River, the Riachuelo is an important waterway that has influenced the urban landscape. Flowing into the Río de la Plata, the Riachuelo historically served as a vital transportation and trade route for the region. Despite facing pollution challenges, efforts have been made to revitalize the river and improve water quality, reflecting Buenos Aires' ongoing commitment to environmental sustainability and urban renewal initiatives.