Showing The Pennsylvania Railroad: A Pictorial History by Edwin P. Alexander

Important places

• Chicago (1,722)
• Harrisburg (46)
• New York (7,400)
• Philadelphia (1,090)
• Pittsburgh (1,171)
• St. Louis (272)
• Washington (2,457)

Counties

• Dauphin (58)
• St. Louis (275)
• Allegheny (1,224)
• Cook (1,792)
• New York (8,072)
• District of Columbia (2,673)
• Philadelphia (1,109)

Regions

• Missouri (930)
• District of Columbia (2,676)
• Pennsylvania (4,458)
• Illinois (2,704)
• New York (9,763)

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)
• North Atlantic Ocean (8,812)