Join urban ecology expert David Hewitt for a walk along the Frankford Creek Watershed. David will share the history of the site, and its hydrology (that is, how water moves around there, and how that has changed through time), and we will walk through the forested area to look at and identify trees. The walk will take about 2 hours and begin at Ferko Playground. This event is a collaboration between the Fairmount Park Conservancy and TTF Watershed Partnership.