Map of the Amazon Reefs (IMAGE) University of Sao Paulo Scientific Outreach Unit Caption Amazon reef system occupies an area of 10,000 km2, with 1,000 km extension from Maranhao State, in Brazil, to French Guiana's border. Credit ScienceAdvances Usage Restrictions credits to ScienceAdvences http://advances.sciencemag.org/content/2/4/e1501252 License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.