ensign_beedrill said:
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Wikipedia: "Union Pacific Railroad"The Union Pacific Railroad (reporting marks UP, UPP, UPY) is a Class I freight-hauling railroad that operates 8,300 locomotives over 32,200 miles (51,800 km) routes in 23 U.S. states west of Chicago and New Orleans. Union Pacific is the second largest railroad in the United States after BNSF, with which it shares a duopoly on transcontinental freight rail lines in the Western, Midwestern and West South Central United States.
Founded in 1862, the original Union Pacific Rail Road was part of the first transcontinental railroad project, later known as the Overland Route. Over the next century, UP absorbed the Missouri Pacific Railroad, the Western Pacific Railroad, the MissouriKansasTexas Railroad and the Chicago, Rock Island and Pacific Railroad. In 1995, the Union Pacific merged with Chicago and North Western Transportation Company, completing its reach into the Upper Midwest. In 1996, the company merged with Southern Pacific Transportation Company, itself a giant system that was absorbed by the Denver and Rio Grande Western Railroad.
The Union Pacific Railroad Company is the principal operating company of Union Pacific Corporation, which are both headquartered at the Union Pacific Center, in Omaha, Nebraska.
Union Pacific has announced plans to acquire the Norfolk Southern Railway in a deal worth $85 billion. If approved by regulators, it would create the first transcontinental railroad network in the United States.
The original company, the "Union Pacific Rail Road", was incorporated on July 1, 1862, under the Pacific Railroad Act of 1862. President Abraham Lincoln had approved the act, which authorized railroad construction from the Missouri River to the Pacific to ensure the stability of the Union throughout the American Civil War, but construction was not completed until after the conflict's conclusion.
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The resulting track ran westward from Council Bluffs, Iowa, to meet in Utah the Central Pacific Railroad line, which had been constructed eastward from Sacramento, California. The combined Union PacificCentral Pacific line became known as the first transcontinental railroad and later the Overland Route.
The line was constructed primarily by Irish labor who had learned their craft during the recent Civil War. Under the guidance of its dominant stockholder, Thomas C. Durant, the namesake of the city of Durant, Iowa, the first rails were laid in Omaha. The two lines were joined at Promontory Summit, Utah, 53 miles (85 km) west of Ogden on May 10, 1869, creating the first transcontinental railroad in North America. Leland Stanford, founder of the Central Pacific Railroad which itself eventually was merged with Union Pacific, himself drove the golden spike, inscribed with the words "to span the continent and wed the oceans."
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Union Pacific logo

Union Pacific Railroad tracks in red, trackage rights in purple, and the special Chicago-Kansas City intermodal trackage rights in light purple
The Last Spike painting (1881)--by renowned California pioneer painter Thomas Hill--depicting Leland Stanford, founder of the Central Pacific Railroad, driving in the last and golden spike to join the Union Pacific and Central Pacific railroads at Promontory Point, Utah, on 10 May 1869, thus creating the first North American transcontinental railroad

The original Golden Spike used to connect the Union Pacific and Central Pacific railways in 1869 near Ogden, Utah was driven in by Leland Stanford and is on display at the Cantor Arts Museum at Stanford University

Union Pacific and Norfolk Southern Railroads, which are proposed to be merged into the first U.S. transcontinental railroad network

Union Pacific Railroad
Big Boy 4014 Locomotive--a type of simple articulated 4-8-8-4 steam locomotive manufactured by the American Locomotive Company between 1941 and 1944--on the Texas A&M campus on 8 November 2019, pulling Union Pacific Locomotive 4141, "George Bush 41."

President George H.W. Bush in October 2005 at the unveiling of Union Pacific Locomotive 4141, a diesel locomotive painted in honor of George H. W. Bush--the 41st President of the United States--with a paint scheme based on that of Air Force One. This UP locomotive, on 6 December 2018, led President Bush's funeral train from Houston to College Station and is now on permanent display at the George H.W. Bush Presidential Library and Museum on the Texas A&M University Campus.