The Darby-Cobbs Watershed consists of 50,000 acres (78 square mile) located in southeast Pennsylvania, including portions of Philadelphia, and some or all of 31 different boroughs and townships located in Delaware, Chester, and Montgomery Counties. The Darby Creek and Cobbs creek converge near Eastwick (in lower Southwest Philadelphia) and Sharon Hill (in Delaware County) where it then travels through the John Heinz National Wildlife Refuge then drains into the Delaware River.
Resilient Darby Cobbs 