Barry Arm Glacier (2013) (IMAGE) NASA/Goddard Space Flight Center Caption The unstable terrain that poses a landslide threat lies between the Cascade Glacier and Barry Arm Glacier, which has been steadily retreating over the last decade. This satellite image shows the glacier in 2013. Credit NASA Earth Observatory images by Lauren Dauphin, using Landsat data from the U.S. Geological Survey Usage Restrictions None 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.