Susitna River in Alaska (IMAGE) University of Texas at Austin Caption A relative elevation map of the Susitna River in Alaska, one of the 30 rivers that were mapped as part of the study. Credit Tian Dong Usage Restrictions Include photo credit License Original 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.