The Schuylkill Navigation: A Journey on the Historic Nineteenth Century Waterway
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
Map Lovers’ Monday: Two views of the Union Canal in central Pennsylvania
Map Lovers’ Monday: So many railroads!
Schuylkill Navigation: Celebrating 200 years
Map Lovers’ Monday: The David Rumsey Map Collection
Old News: Two unusual underground rescues
