Golden Spike National Historic Site Sign – Utah
The Golden Spike National Historic Site is located in Promontory, Utah, and commemorates the completion of the First Transcontinental Railroad in the United States. This historic event took place on May 10, 1869, when the Central Pacific Railroad (Jupiter locomotive) and the Union Pacific Railroad (locomotive No. 119) met at Promontory Summit, marking the unification of the Eastern and Western U.S. rail systems.