Promontory Summit remained in use for 35 years.

Union Pacific engineers had initially considered a direct route across the lake but instead opted for the surveyed line over Promontory Summit.

The link-up of the first transcontinental railroad at Promontory Summit, Utah.

Main line trains no longer passed over Promontory Summit.

His best known photograph shows the joining of the rails at Promontory Summit, Utah on May 10, 1869.

Every night he dreams of the days getting closer to the Chinese men finishing and ending up at Promontory Summit.

The driving of the golden spike completed the first transcontinental railroad at Promontory Summit in 1869.

A devoted historian, Anderson considered the desolation at Promontory Summit a national scandal.

"Promontory Summit best illustrates the historical meaning, as well as the dramatic construction story, of the first transcontinental railroad."

It culminates with the scene of driving of the golden spike at Promontory Summit on May 10, 1869.