Scientific drill rig on hillslope (IMAGE) University of Texas at Austin Caption A research drilling rig on a hillslope at the field site in Northern California. Credit Michelle Pedrazas/UT Jackson School of Geosciences Usage Restrictions Include photo credit 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.