Map Lovers’ Monday: Philadelphia in 1897, with color added
Thomas Gill Maps of the Schuylkill Navigation, 1827
Map Lovers’ Monday: AQUA, in the beginning
Map Lovers’ Monday: Two views of the Union Canal in central Pennsylvania
Map Lovers’ Monday: Topography of Philadelphia from 1863
Map Lover’s Monday: Looking for Cleaner Water
Schuylkill River watershed, population in 1904
Map Lovers’ Monday: Schuylkill River from Wissahickon Creek to Norristown, 1913
Map of Philadelphia Harbor, Delaware and Schuylkill, 1912
Map Lover’s Monday: Fairmount Park, 1869
