Sunday, July 19, 2026

Question: California’s Central Pacific Railroad built the western half of the first transcontinental railroad, laying track eastward from Sacramento. In which territory were the two railroads finally joined by a golden spike in 1869?

Answer: Utah Territory. On May 10, 1869, the Central Pacific and the Union Pacific met at Promontory Summit in Utah Territory, where Leland Stanford ceremonially drove the famous Golden Spike to mark the completion of the nation’s first transcontinental railroad. The finished line cut cross-country travel from months to roughly a week, transforming transportation, commerce and westward expansion.