Showing On the main line; the Pennsylvania Railroad in the 19th century by Edwin P. Alexander
Important places
- Altoona (25)
- Harrisburg (46)
- Johnstown (27)
- Lancaster (126)
- Philadelphia (1,090)
- Pittsburgh (1,171)
Counties
Regions
- Pennsylvania (4,458)
Countries
- United States (64,950)
Other geographical areas
- Allegheny Plateau (173)
- Piedmont (USA) (1,063)
- Appalachian Mountains (1,111)

