I checked the web for this next answer, and it says the Amazon River is the longest river/drainage basin in the world. I hope that helped! :)
the amazon basin
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Piceance and Uinta Basin Date found:1912
The Andes mountains, the Amazon basin, and the Nazca Plains. The Nazca plate is currently being subducted under the South American plate. The Amazon basin encompasses the largest drainage area in the world and the Amazon river is number one in terms of water discharge. The Brazilian Shield and the Guiana Shield are located in north western South America. They are both Precambrian.
The world's fourth largest river is actually the Mississippi River. The river that is known for having large amount of yellow silt deposits along its course is the Yellow River, located in China. It is the world's sixth-largest river.
The biggest desert in the world is Antarctica and the longest river is the Nile in Africa. The Sahara, the world's largest hot desert is also in Africa.
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The largest known river basin in the United States is the Mississippi
Amazon River
It has the largest drainage basin in the world. The longest is the Nile.
The Amazon with a drainage basin of 2,270,000 square miles.
Amazon River is one of the largest river in Brazil. And it is the largest drainage basin in the world covering 7,050,000 square kilometers.
The Lake Eyre Basin is the world's largest inland drainage basin.
The largest South American river whose mouth is on the Atlantic Ocean is the Amazon. It has the largest drainage basin of any river in the world.
The Amazon - which has the largest drainage basin in the world accounting for approximately one fifth of the world's total river flow.
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The Amazon Basin, the largest drainage basin in the world, covers about 40 percent of South America, an area of approximately 7,050,000 square kilometres (2,720,000 sq mi)
The Amazon Basin, the largest drainage basin in the world, covers about 40 percent of South America, an area of approximately 7,050,000 square kilometres (2,720,000 sq mi)
The Amazon River is the second longest river in the world. It's just a little shorter than the Nile. Its length is 4,391 miles [7,062 kilometers]. Its drainage basin covers an area of 2,670,000 square miles [6,915,000 square kilometers]. The drainage basin takes up 40 percent of the South American continent. The Amazon drainage basin passes through seven countries: Brazil, Bolivia, Colombia, Ecuador, Guyana, Peru, and Venezuela.