19th century life in South Philadelphia’s marshland
The City and Port of Philadelphia on the River Delaware from Kensington, 1800
View of Fairmount Water Works, ca. 1827
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.