Map of the Northern Gulf of Mexico (IMAGE) U.S. National Science Foundation Caption This is a Map of the Northern Gulf of Mexico with sampling sites in the study. Hotter colors equal more oil. Credit David Valentine et al. Usage Restrictions None 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.