Sketch map of eastern Pennsylvania and northern Maryland indicating the railroad network and the connections with the coal fields. Shows major drainage, cities and towns, and four main coal field areas.
Contributor:Kase, S. P. - Reading & Columbia Railroad Company
Topographical map of part of Maryland showing relief by hachures, drainage, cities and towns, canals, the Washington Aqueduct, roads, and railroads with mileage on the main survey line. Chartered in 1853.
Contributor:Hutton, Wm. R. (William Rich) - Metropolitan Railroad Company (Georgetown, Washington, D.C) - Hutton, Wm. R.