27/02/2026
Union Pacific's legendary Big Boy No. 4014, the world's largest operating steam locomotive, is steaming up for the western leg of its coast‑to‑coast tour to celebrate America's 250th birthday with 27 whistle-stops and four public display days scheduled during its journey across four western states.
Four public display days are planned for this mighty steam locomotive during the western leg of the tour, with two days each in Roseville, California, April 10-11 and Ogden, Utah, April 18-19.
Big Boy will leave its home base in Cheyenne, Wyoming, on March 29, traveling across Wyoming, Utah, Nevada, and California, where it will stop near historic Mile 0, the site where Central Pacific Railroad laid the first rail ties for the transcontinental railroad in 1863.
In addition to the public display days, rail fans can see this historic machine in action at whistle-stops in communities along its journey. Whistle-stops are generally 15- to 30-minutes long. Complete details of the western leg schedule can be found at UPsteam.com.
Wyoming
March 29 – Laramie
March 29 – Medicine Bow
March 30 – Wamsutter
March 31 – Rock Springs
April 1 – Green River
April 21 – Green River
April 23 – Point of Rocks
April 23 – Wamsutter
April 24 – Medicine Bow
April 24 – Laramie
Utah
April 2 – Morgan
April 2 – Salt Lake City
April 20 – Morgan
Nevada
April 4 – Wells
April 6 – Carlin
April 6 – Battle Mountain
April 7 – Gerlach
April 14 – Lovelock
April 15 – Carlin
April 15 – Elko
April 17 – Wells
April 17 – Montello
California
April 9 – Oroville
April 9 – Marysville
April 9 – Lincoln
April 12 – Colfax
April 12 – Truckee
Display days offer an up‑close look at this 1.2‑million‑pound marvel, along with the "Experience the Union Pacific" rail car — an immersive walk‑through exhibit that highlights the rich history and lasting impact of American railroading.