West Antarctice Ice Sheet Divide Ice Core (image) University of Washington Share Print E-Mail Caption A freshly extracted section of the 2-mile-deep West Antarctic Ice Sheet Divide core, drilled from 2006 to 2011. Sections are now stored in freezers at a national facility in Denver. Credit Jay Johnson/University of Wisconsin Usage Restrictions With credit Share Print E-Mail 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.