Golden Spike National Historical Park is a U.S. National Historical Park located at Promontory Summit, north of the Great Salt Lake in east-central Box Elder County, Utah, United States. The nearest city is Corinne, approximately 23 miles (37 km) east-southeast of the site.

It commemorates the completion of the first Transcontinental Railroad where the Central Pacific Railroad and the first Union Pacific Railroad met on May 10, 1869. The final joining of the rails spanning the continent was signified by the driving of the ceremonial Golden Spike.

The Golden Spike National Historical Park encompasses 2,735 acres (1,107 ha). In 2002, it received 49,950 visitors. It was authorized as a National Historic Site on April 2, 1957 under non-federal ownership. It was authorized for federal ownership and administration by an act of Congress on July 30, 1965, as Golden Spike National Historic Site. The John D. Dingell, Jr. Conservation, Management, and Recreation Act, signed into law March 12, 2019, redesignated it as a national historical park. Historic sites are typically a single building, while historical parks include multiple landmarks in a larger district.

On May 10, 2019, a 150th anniversary celebration was held in commemoration of the completion of the railroad. This event was attended by several notable local leaders, including Utah governor Gary Herbert and the president of The Church of Jesus Christ of Latter-day Saints, Russell M. Nelson.

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