Pre- and post-fire slopes (IMAGE) Geological Society of America Caption Pre- and post-fire slopes show the contrast in surface roughness and potential rainfall interception. Credit Credit: Francis Rengers/U.S. Geological Survey. Usage Restrictions Credit: Francis Rengers/U.S. Geological Survey. 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.