Spring Creek (IMAGE) Penn State Caption Researchers used the Spring Creek watershed -- which drains an area of about 150 square miles into Bald Eagle Creek, a tributary of the Susquehanna River -- for the project because it is one of the best-studied watersheds in the Chesapeake drainage. Credit Sue Morgan Usage Restrictions non commercial use only 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.