Ledi-Geraru Research Site (IMAGE) Arizona State University Caption A caravan moves across the Lee Adoyta region in the Ledi-Geraru project area near the early Homo site. The hills behind the camels expose sediments that are younger than 2.67 million year old, providing a minimum age for the LD 350-1 mandible. Credit Erin DiMaggio Usage Restrictions Image may be used in conjunction with media coverage of this article. No other use is authorized. 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.