Patapsco River in Downtown Baltimore (image) Cary Institute of Ecosystem Studies Share Print E-Mail Caption Aerial image of Patapsco River in downtown Baltimore, to illustrate an urban system. Credit Will Parson/Chesapeake Bay Program Usage Restrictions Educational, to promote this press release. 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.