Question #148159. Asked by Tarkowski.
Last updated Nov 24 2020.
Originally posted Nov 24 2020 11:37 AM.
wellenbrecher
Answer has 10 votes
Currently Best Answer
wellenbrecher 19 year member
455 replies
Answer has 10 votes.
Currently voted the best answer.
It's the Amazon. This huge river has more than 1,100 tributaries. 17 of those are over 1,500 kilometres (930 mi) long. The longest tributary is Rio Madeira with a length of 3,250 km (2,020 mi).
https://www.ascentoftheamazon.com/learning-resources/rivers-tributaries/