Thomas Mill Covered Bridge over Wissahickon Creek (Picturesque America)
Drawing Dock Creek
Fairmount Water Works, W.H. Bartlett, 1839
Fairmount Water Works from the forebay, 1833
Fairmount and vicinity, 1839
Maps, etchings, newspaper clippings and other images and documents covering the natural landscape of Philadelphia and surrounding areas throughout more than 300 years of history.