Oregon mountain spring (IMAGE) University of Oregon Caption Scientists examine a large-volume spring in young volcanic rocks of the Mckenzie River watershed on the west side of the Cascade topographic crest that was monitored as part of this study. Credit Benjamin Nash Usage Restrictions Journalists may use with proper 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.