Levi Moxness, GeoCorps (image) Geological Society of America Caption This is GeoCorps participant Levi Moxness, National Park Service, Badlands National Park. Credit GSA GeoCorpsTM America program. Usage Restrictions Credit to GSA's GeoCorps America program. 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.