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B & O power; steam, diesel, and electric power of the Baltimore and Ohio Railroad, 1829-1964

Important places

Baltimore (390)
Chicago (1,721)
Cumberland (26)

Counties

Allegany (32)
Cook (1,792)
Baltimore (440)

Regions

Maryland (1,306)
Illinois (2,704)

Countries

United States (64,950)

Other geographical areas

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