the amazon/1/ ........... in a stream near the top of a mountain which /2/......Cerro Huagra . The stream is called the Huarco. /3/.........the Huarco becomes a river which is known /4/.........the Ucayali. The Ucayali then becomes the Amazon . The/5/......... of the Amazon from the /6/ ........of the Huarco to the Atlantic Ocean is 6.448 kilometers