History of Baltimore Ohio Railroad by Timothy Jacobs

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Important places

Chicago (1,721)
Cincinnati (193)
Cumberland (26)
Philadelphia (1,090)
Pittsburgh (1,170)
St. Louis (272)
Washington (2,457)
Wheeling (27)

Counties

St. Louis (275)
Allegheny (1,224)
Allegany (32)
Cook (1,792)
Hamilton (202)
District of Columbia (2,673)
Ohio (29)
Philadelphia (1,109)

Regions

Missouri (930)
West Virginia (543)
District of Columbia (2,676)
Maryland (1,306)
Ohio (1,283)
Pennsylvania (4,458)
Illinois (2,704)

Countries

United States (64,950)

Other geographical areas

Allegheny Plateau (173)
Piedmont (USA) (1,063)
Appalachian Mountains (1,111)
Central Lowlands (North America) (1,334)