Site of drill rig (image) Geological Society of America Share Print E-Mail Caption The brownish area on the right-hand edge of this image is the site where the rig was, just down the road from Viti Crater. Credit Shane Rooyakkers. Usage Restrictions Credit Shane Rooyakkers. Share Print E-Mail 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.