Celebration of the Conference of the railroad in Promontory Summit, Utah in Might 1869 The initial Transcontinental Railroad while in the U.S. was in-built the 1860s, linking the railroad network on the japanese U.S. with California about the Pacific Coastline. Concluded on Could 10, 1869, on the Golden spike function https://transpor19752.wikinstructions.com/938822/not_known_details_about_transpor