Map Lovers’ Monday: Topography of Philadelphia from 1863
Map Lovers’ Monday: Schuylkill River from Wissahickon Creek to Norristown, 1913
Map Lover’s Monday: Fairmount Park, 1869
Fairmount Park topographical map, showing East Park Reservoir, 1872
Early photographs of Fairmount and vicinity, 1848
Down Under III: A walk in the Dobson’s Run Storm Relief Sewer, June 15, 2010
Requiem for a stream: A brief history of Dobson’s Run
Down Under, Part 2: Beaver Creek as it appears today
Requiem for a stream: Still House Run in Manayunk
Leverington Avenue Stormwater Sewer
