Subjects Landscape Changes

Filling valleys and other lowlands, cutting down high ground, piping streams into sewers, filling marshland, dredging and damming streams and rivers, and any other activities or infrastructure designed to alter the original topography of the city to more readily accommodate real estate development.

Fairmount, bird's eye view from Lemon Hill (detail)

Fairmount Park, bird’s eye view from Lemon Hill, detail

Bird's eye view of Delaware River

Bird’s eye view of Delaware River and Philadelphia, about 1840

Upper Ferry Bridge over the Schuylkill (Graff09.03)

Upper Ferry Bridge, 1820

Race Bridge, Fair Mount Water Works, 1834 (Graff05.63)

Race Bridge, Fairmount Water Works, 1834

View of Fairmount Water Works, ca. 1827

Lemon Hill and Sedgley Park, Graff Jr., 1851 (Graff05.21)

Plan of Lemon Hill and Sedgley Park, Fairmount and Adjoining Property, 1851

Penn's Treaty with the Lenape

Penn’s Treaty with the Indians (Watson’s Annals)

Dock Creek Watson's Annals

Drawbridge and Dock Creek, Watson’s Annals

Wissahickon at Sunset

Wissahickon at Sunset