Ice River Spring (image) Geological Society of America Caption This is a view looking north at the Ice River spring, the highest latitude perennial spring known. Located in the polar desert of northern Ellesmere Island, Nunavut, the high discharge spring carves a gully remarkable similar to those observed on Mars. Credit Photo by Stephen Grasby. Usage Restrictions Credit to Stephen Grasby and Geology. 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.