Map Lovers’ Monday: Schuylkill River from Wissahickon Creek to Norristown, 1913
Sandy Run Watershed and the Holmesburg Water Works
Birch’s Views of Philadelphia, 1800
Sassafras (Race) Street Survey, 1819
Fairmount Park topographical map, showing East Park Reservoir, 1872
Wingohocking Sewer outfall into Frankford Creek
Thomas Mill Covered Bridge over Wissahickon Creek (Picturesque America)
Plans and maps of the Pennypack Creek Watershed in Philadelphia
Wingohocking Sewer across Penn St.
Early photographs of Fairmount and vicinity, 1848
