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Central Pacific Railroad construction. Historical image showing Central Pacific Railroad construction workers standing on railroad flatcars being pushed by a locomotive across a trestle. The Central Pacific Railroad is the former name of the railroad network built between California and Utah, USA, that formed part of the 'First Transcontinental Railroad' in North America. It is now part of the Union Pacific Railroad. Photographed at Promontory Point, Salt Lake Valley, Utah, USA, in 1868.
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