Topics Landscape Changes

Houses on an abutment, from The Waffle

The Waffle: Water History Video 6

Map Lovers’ Monday: Topography of Philadelphia from 1863

Photograph of Roberts Mill on Wingohocking Creek in Germantown, built in the late 17th century. (Photograph by J. C. Browne, 1871. Castner Collection/Free Library of Philadelphia)

Roberts Mill, Wingohocking Creek, 1871

Down Under III: A walk in the Dobson’s Run Storm Relief Sewer, June 15, 2010

Requiem for a stream: Still House Run in Manayunk

Technical drawing showing streets and sewers

Leverington Avenue Stormwater Sewer

The Manayunk Expressway