Ice patch artifacts (IMAGE) Max Planck Institute of Geoanthropology Caption Archaeological discoveries from 2019 ice patch work in western Mongolia, including a hafted bronze arrow (left) dated to ca. ca. 900-825 cal. BCE, and a horse-hair rope fragment dated to ca. 435-535 cal. CE (right) Credit Peter Bittner Usage Restrictions Please provide credit information with reuse 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.