Two views on the water supply, 1939
The pipe beneath the rocky path
Map Lovers’ Monday: Philadelphia in 1897, with color added
Fairmount Water Works in High Resolution
Water Bureau Newspaper Scrapbook, 1942-1952
The Schuylkill Navigation: A Journey on the Historic Nineteenth Century Waterway
Thomas Gill Maps of the Schuylkill Navigation, 1827
Map Lovers’ Monday: Philadelphia in 1957, according to the Pennsy
History of Water in Roxborough: A talk by Adam Levine
Map Lover’s Monday: Looking for Cleaner Water
