The Amazon Basin is the part of South America drained by the Amazon River and its tributaries that drains an area of about 6,915,000 square kilometres (2,670,000 sq mi), or roughly 40 percent of South America. The basin is located in the countries of Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, and Venezuela. The Amazon rainforest is the largest in the world, covering about 8,235,430 km2 (3,179,720 sq mi) with dense tropical forest.
Read more about Amazon Basin: Plant Life, Animal Life, Climate and Seasons, Human Occupation, River Commerce, Sustainable Opportunistic Agriculture in Undeveloped Areas, Non-sustainable Agriculture in Developed Areas, Geography, Languages