The first Transcontinental Railroad was a monumental undertaking by the time workers finished it in 1869.
Today, tourists and enterprising photographers can visit much of what American ancestors left behind 150 years ago. Some of the rights-of-way the Union Pacific and Central Pacific used for the railroad are still in service as railroad lines. Other pieces of the Transcontinental Railroad have become trails, still other are abandoned to the prairies or mountains to be reclaimed by nature.
I see many names I recognize on the maps, so part of what I rode on UP/SP City of St. Louis is still being used. I checked the maps in Journey to Prom mag and enjoyed the pics along with the article. Lots of memories along those places.