Yosemite's Illilouette Basin (IMAGE) University of California - Riverside Caption Yosemite's Illilouette Basin, where fires are allowed to burn out. Credit Lauren Ponisio / UCR 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.