Modern marvels transcontinental railroads

"The dream-to-reality stories behind the construction of America's first transcontinental railroad system, completed after a decade of work on May 10, 1869, wihen the last spike was driven at Promontory, Utah."@en
"America's first transcontinental railroad system was finally completed on May 10, 1869, a decade after it began. This is the story of the effort to forge an iron link across the untamed American West."@en
"America's first transcontinental railroad system was finally completed on May 10, 1869, a decade after it began. This is the story of the struggle to forge an iron link across the untamed West."@en
"Describes the construction of America's Transcontinental Railroad explaining why it was both an engineering marvel and a technological nightmare. Upon its completion in 1969, a nation was united and forever transformed."
""America's first transcontinental railroad system was finally completed on May 10, 1869, a decade after it began. This is the story of the struggle to forge an iron link across the untamed West""