Golden Spike Commemorative Event Tickets 2021 The world changed here. On May 10, 1869 one of the greatest technological achievements of the 19th century, the completion of the first transcontinental railroad across the United States, occurred on Promontory Summit. On May 8, 9 and 10, 2021 Golden Spike National Historic Park will commemorate the 152nd anniversary of the completion of the nation’s first transcontinental railroad. The event will include: re-enactments of the original 1869 ceremony, re-creation of the historic “champagne photo,” steam locomotive demonstrations and exhibits...