The controversy that surrounds the Amazon’s main tributaries and their headwaters, as well as the complicated geography of its delta, makes it difficult to know exactly where the Amazon begins and where it ends.
Amazonase peamiste lisajõgede ja nende lätete ümber käiva poleemika ning jõedelta keeruka geograafia tõttu on raske täpselt öelda, kus Amazonas algab ja lõppeb.