Schuylkill Navigation: Celebrating 200 years
The Schuylkill Navigation: A Journey on the Historic Nineteenth Century Waterway
The Schuylkill Navigation: A Journey on the Historic Nineteenth Century Waterway
Thomas Gill Maps of the Schuylkill Navigation, 1827
Schuylkill Navigation: Celebrating 200 years
Map Lovers’ Monday: The David Rumsey Map Collection
Schuylkill Navigation lock at Fairmount (Picturesque America)
Drive along the Wissahickon Creek Vallley (Picturesque America)
Early visions of Philadelphia’s airport
Visionary planning report for Philadelphia region, 1928
