Great Divide Basin (IMAGE) Washington University in St. Louis Caption The Great Divide Basin, a 4,000-square-mile stretch of rocky desert in Wyoming. Credit Courtesy of Robert Anemone 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.