Map Lovers’ Monday: Philadelphia in 1957, according to the Pennsy
Map Lovers’ Monday: Topography of Philadelphia from 1863
The Discovery Center: The creative reuse of an abandoned city reservoir
Fairmount Water Works (Picturesque America)
Fairmount and Schuylkill, Appletons’ Journal, 1869
Last gasp of the Schuylkill Interceptor, December 20, 1956
History of Belfield (1934)
Early photographs of Fairmount and vicinity, 1848
Frankford Creek Watershed: A historical overview of the Philadelphia section
Filling Low Land: A Story of Ash-Dumping in the Wingohocking Creek Watershed