Long-Frozen Lake Deposits in Antarctica (IMAGE) University of Pennsylvania Caption Antarctica's Friis Hills in the central Dry Valleys of the eastern portion of the continent contains ancient lake deposits indicating that the area has remained frozen for 14 to 17.5 million years. Credit University of Pennsylvania Usage Restrictions In context of reporting 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.