El Capitan (IMAGE) Geological Society of America Caption This is from Sept. 28, 2017 rockfall at El Capitan. Photo by Przemek Pawilkowski. Credit Photo by Przemek Pawilkowski. Usage Restrictions Credit Przemek Pawilkowski and GSA Today. 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.