how many tributaries lead into the amazon river?
Answer Hello Dave, The Amazon River is fed by more than 1,000 tributaries, including seven that are more than 1,000 miles long, and it drains more than half of Brazil, as well as parts of Bolivia, Peru, Ecuador, Colombia and Venezuela. Its total drainage basin of some 2,722,000 square miles and encompasses about one-0third of South America,an area more than 10 times the size of Texas and nearly as large as the entire contiguous United States.
