Showing B & O power; steam, diesel, and electric power of the Baltimore and Ohio Railroad, 1829-1964 by Lawrence W. Sagle

Important places

• Baltimore (390)
• Chicago (1,722)
• 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)