Thomas Gill Maps of the Schuylkill Navigation, 1827
Map Lovers’ Monday: Philadelphia Topography
Map Lovers’ Monday: AQUA, in the beginning
Map Lovers’ Monday: Philadelphia Geology, 1881
Buried Treasures No. 2: Williamson Bros. Company
Map Lovers’ Monday: Two views of the Union Canal in central Pennsylvania
Map Lovers’ Monday: Philadelphia in 1957, according to the Pennsy
Schuylkill Navigation: Celebrating 200 years
Map Lovers’ Monday: So many railroads!
Map Lovers’ Monday: Water for City Hall
