The large river that flows through Brazil and is one of the longest in the world is the Amazons River. Stretching approximately 4,345 miles (7,062 kilometers), it plays a crucial role in the region’s ecosystem and climate. The Amazon Basin is known for its remarkable biodiversity, featuring thousands of plant and animal species. The river serves as a vital source of transportation, resources, and sustenance for the communities that reside along its banks, making it essential for both ecological and cultural health.