A Giant River
The length of the river is about 4,000 miles long and goes through the countries of Brazil, Colombia, and Peru. It spans from being 1 km to 40 km (1-30+ miles) wide during different seasons in South America. It is also larger than the next seven biggest rivers combined. It starts in the Andes Mountains in Peru and dumps/ ends in the Atlantic ocean spanning more than 40% of South America.