Fairmount Water Works in High Resolution
Ghosts of Water in Fairmount Park, Part 1, with Adam Levine
Rebirth of the Rivers: Water History Video 3
Sandy Run Watershed and the Holmesburg Water Works
Plans and maps of the Pennypack Creek Watershed in Philadelphia
Newspaper Clipping Scrapbooks of Frederic Graff Jr.,Chief Engineer of the Philadelphia Water Department: Part 1, 1854-1857
Newspaper Clipping Scrapbooks of Frederick Graff Jr., Chief Engineer of the Philadelphia Water Department. Part 2: 1858-1871
Requiem for a stream: Adams Run in Oak Lane
Filling Low Land: A Story of Ash-Dumping in the Wingohocking Creek Watershed
