Dig It! The Secrets of Soil (IMAGE) Soil Science Society of America Caption Entrance to the Smithsonian’s Dig It! The Secrets of Soil. The making of the scientific and educational exhibition is the topic of a special session held on Oct. 8 at the GSA and SSSA-ASA-CSSA Joint Annual Meeting in Houston, Texas. Credit Soil Science Society of America 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.