Scientists Examining Icelandic Basalt Pillars (IMAGE) American Geosciences Institute Caption Clusters of moss-covered, two-meter-tall basalt pillars in Iceland's Skaelingar Valley remain from the Laki lava flow of 1783. Credit Tracy Gregg Usage Restrictions Please contact mmoses@agiweb.org for usage information. 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.