Heber Valley fog study (IMAGE) University of Utah Caption Heber Valley in northern Utah was the site of an intensive study by the University of Utah into the formation of fog in complex terrain. Credit Zhaoxia Pu, University of Utah Usage Restrictions for use in news articles only License Original 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.