Subjects Natural Environment

Fairmount Water Works: The Surprising History of an American Landmark

The pipe beneath the rocky path

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

Cobbs Creek: A Brief Historical Overview by Adam Levine

Centre Square Engine House, location of one of two steam engines used in the city’s original water system. Engraving by Birch.

Centre Square Engine House, ca. 1807