Encrusted Pool (IMAGE) University of Chicago Caption Some of the springs in Uzon Caldera are boiling hot, reaching temperatures of 210 degrees Fahrenheit. Other springs are cooler, but still scalding hot. "That factors into how we approach these springs with special gear to protect ourselves should we happen to have a leg punch through a thin crust into scalding water," Albert Colman says. Credit Courtesy of Albert Colman Usage Restrictions News organizations may use this image in connection with reports about the work of Albert Colman and his associates. 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.