Subjects Mapping

Mill Creek Sewer drawing, cross-section, 1869

Archival Storytelling: Water History Video 4

Map Lovers’ Monday: Circles of Destruction

Map Lover’s Monday: Fairmount Park, 1869

Birkinbine Schuylkill Hydrographical Survey 1861-66

Two reports on the state of the Schuylkill River, 1867