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Golden Spike National Historic Site
View of the Big Fill of the Central Pacific Grade. The Union Pacific chose to build a wooden trestle across the ravine below the Big Fill. It was removed after the Union Pacific abandoned the rail line.
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U.S. Department of the Interior - U.S. Geological Survey - Geology Discipline
The URL of this page is: http://3dparks.wr.usgs.gov/2005/goldenspike/html2/gosp0056.htm
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Last modified: 11/28/2005