Hollembaek Hill archaeological site (IMAGE) University of Arizona Caption Researchers unearthed the jawbone at a site called Hollembaek Hill, south of Delta Junction, a region where archaeologists have long done research in partnership with local tribes. Credit Courtesy of Joshua Reuther Usage Restrictions This visual may only be used in the context of reporting on the research referenced in this news release. Credit must be provided as indicated. 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.