Drilling under Water in Devils Hole (IMAGE) University of Innsbruck Caption Using an underwater drill specially developed for the expedition to Devils Hole, the researchers took samples from the calcite deposits in the cave. Credit Robbie Shone Usage Restrictions None License Original 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.