The first leg of the tour starts March 29, with the Big Boy and several historical passenger cars from Union Pacific’s Heritage Fleet traveling west to California from Cheyenne, Wyoming, the steam locomotive’s homebase. The tour ends April 24 in Cheyenne.

Two major public display days are set:

April 10-11: Roseville, California April 18-19: Ogden, Utah

https://www.up.com/news/heritage/big-boy-celebrates-americas-birthday-260126