Whaleback anticline (IMAGE) University of Washington Caption The former Bear Valley Strip Mine in Pennsylvania is the site of the “Whaleback anticline,” named because the 30-foot-tall hump of bedrock looks like a whale. Decades of coal mining exposed folds in the bedrock that offer clues to the landscape’s history. The Virtual Field Geology project uses drone photography to create virtual field visits on a web browser or virtual reality headset. Credit University of Washington Usage Restrictions With credit 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.