We first mapped the Amazon River Basin for a rainforest protection conference many years ago, preparing what we thought was a pretty good rendition. However, upon arriving at the conference full of experts, we received so much additional data that we re-did the map before publishing it.
Since then, we have updated the map repeatedly as more information has come to light. Now, we are pleased to release this sixth version, which achieves something we've long wanted to do — it adds a detailed map of the northern half of Brazil/Brasil to a river map that covers portions of seven different countries.
