At what Utah location did workers complete the first U.S. transcontinental railroad in 1869?

Workers completed the first U.S. transcontinental railroad at Promontory Summit in Utah on May 10, 1869.

The Union Pacific built westward from the existing eastern rail network, while the Central Pacific built eastward from Sacramento, California. Their tracks met at Promontory Summit, where a ceremonial golden spike marked the connection.

The railroad, originally called the Pacific Railroad and later the Overland Route, created a continuous rail link across the United States. It connected the eastern network at Council Bluffs, Iowa, with the Pacific coast at Oakland and San Francisco Bay. The line measured about 1,911 miles.

Promontory Summit is often confused with Salt Lake City or Ogden because both are associated with Utah’s railroad history. The original meeting point was Promontory Summit, not the state capital. A historic replica of the ceremony is now part of Golden Spike National Historical Park.