The pipe beneath the rocky path
Map Lovers’ Monday: Topography of Philadelphia from 1863
Map Lover’s Monday: Fairmount Park, 1869
Early photographs of Fairmount and vicinity, 1848
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.
Requiem for a stream: Still House Run in Manayunk
Leverington Avenue Stormwater Sewer
The Manayunk Expressway
