Schuylkill River at Rockland Landing (Picturesque America)
Down Under III: A walk in the Dobson’s Run Storm Relief Sewer, June 15, 2010
Down Under, Part 2: Beaver Creek as it appears today
Overbrook, as it was. A brief history of the Overbrook neighborhood of Philadelphia, focusing on changes in the natural landscape.
Leverington Avenue Stormwater Sewer
Two reports on the state of the Schuylkill River, 1867
Streams, islands, and ferries of early Philadelphia
19th century life in South Philadelphia’s marshland