Fairmount Water Works and the Lemon Hill Observatory
At the Confluence of Navigation History: Past, Present and Future
Fairmount Water Works: The Surprising History of an American Landmark
Farewell to the SS United States
Army Corps of Engineers 1882 Report on Navigation in Frankford Creek
Fairmount Water Works in High Resolution
The Schuylkill Navigation: A Journey on the Historic Nineteenth Century Waterway
Thomas Gill Maps of the Schuylkill Navigation, 1827
Map Lovers’ Monday: Two views of the Union Canal in central Pennsylvania
Map Lovers’ Monday: Philadelphia in 1957, according to the Pennsy
