Alpine Gorge (IMAGE) University of Washington Caption A train crosses a river gorge in the Swiss Alps that drops steeply from the floor of the broad glacial valley above it. Credit Oliver Korup Usage Restrictions News use only. 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.