Ceren Sacbe (IMAGE) U.S. National Science Foundation Caption This is a view of the Ceren sacbe buried under about 16 feet of ash. The trench on the left side was a drainage canal to catch excess rainwater. Credit University of Colorado 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.