1872
H. F. Walling Pennsylvania Atlas

Pittsburgh and Allegheny County Plates

Courtesy Cleveland Public Library Map Department

1904
Map of Pittsburgh District
showing Railroad Terminals and location of Iron and Steel Industries having track connections

150 dpi DjVu (3.3MB)
150 dpi PDF (3.3MB)

Map courtesy of Pennsylvania State University Donald W. Hamer Center for Maps and Geospatial Information

See Also: 1906 version (Library of Congress)

1924
Pennsylvania Railroad Central Region
Industrial Map of the Pittsburgh District

600 dpi jpg (4.7MB)

See also Conrail Revision

c1930
New Map of Greater Pittsburgh
Allegheny County

Showing Street Car and Bus Lines, Ward Lines and Numbers

Interstate Map Company

Map courtesy of Pennsylvania State University Donald W. Hamer Center for Maps and Geospatial Information

Union RailroadMaps

1921
1950

1952
1955

Pittsburgh Terminal District

Railroad & Terminal Limits

Details of Junction Points Between Railroads

Courtesy of Steel Valley Trail Council

1960
Pittburgh & Lake Erie Railroad

1979
1986

Conrail

Pittsburg and Vicinity Railroads & Industries