A rough map of the Amazon Reef, a coral + sponge reef, recently discovered off the coast of the northern South American coast, in April 2016. The map is based off Amazon Reef.png by User:PhilipTerryGraham, in turn based on Blank map of South America.svg by User:Camilo Sanchez and on a map of the reef, published in "Science Advances". My modifications consist of adding country names and using black for political boundaries to distinguish them from rivers, which are (or rather is, since it's just the Amazon) white.