Sierra Negra Volcano (IMAGE) University of Rochester Caption This is a photo of the Sierra Negra volcano on Isabela Island in the Galápagos Archipelago. Credit Cynthia Ebinger, University of Rochester 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.