Thomas Gill Maps of the Schuylkill Navigation, 1827
Map Lover’s Monday: Looking for Cleaner Water
Map Lovers’ Monday: Schuylkill River from Wissahickon Creek to Norristown, 1913
Map of Philadelphia Harbor, Delaware and Schuylkill, 1912
Requiem for a stream: Still House Run in Manayunk
Petition of manufacturers along the Schuylkill River in Philadelphia for a new upstream water supply, 1868
