Release Details

Union Pacific's Big Boy No. 4014 Returns this Summer with Public Display Days in Roseville, California and Ogden, Utah

May 9, 2024

Legendary locomotive also will make 19 whistle-stops in five western states

OMAHA, Neb.--(BUSINESS WIRE)--May 9, 2024-- Union Pacific's legendary Big Boy No. 4014, the world’s largest operating steam locomotive built to conquer mountains, will make 19 whistle-stops in five states this summer during its 2024 Westward Bound Tour from Wyoming to California.

In addition, this mighty steam locomotive will be on public display for two days each in Roseville, California, July 12-13, and Ogden, Utah, July 20-21.

Big Boy will leave its home base in Cheyenne, Wyoming, on June 30, traveling across Wyoming, Utah, Nevada, and California. On its return trip to Wyoming, it will travel for a short stretch across southeast Idaho.

Scheduled whistle-stops:

June 30Laramie, Wyoming
July 1Wamsutter, Wyoming
July 3Green River, Wyoming
July 4Morgan, Utah
July 6Wells, Nevada
July 8Carlin and Battle Mountain, Nevada
July 9Gerlach, Nevada
July 11Oroville, California
July 14Colfax and Truckee, California
July 16Lovelock, Nevada
July 17Carlin, Nevada
July 19Montello, Nevada
July 22Brigham City, Utah, and Soda Springs, Idaho
July 23Kemmerer, Wyoming
July 25Point of Rocks, Wyoming
July 26Medicine Bow, Wyoming

Display days offer an up-close look at the 1.1-million-pound marvel along with the "Experience the Union Pacific" rail car, a captivating walk-through exhibition that provides a unique glimpse into the rich history of railroading.

During the tour, the Union Pacific Museum will host a special passenger trip. The unique experience is the annual gala fundraiser for the nonprofit organization and provides a rare opportunity to travel on this historic heritage equipment. More information and ticket information will be posted at as the tour gets closer.

Twenty-five Big Boy locomotives were built for Union Pacific to haul freight over the steep grade of the Wasatch Mountain Range in Utah during World War II. Eight were preserved after the locomotives were retired six decades ago, but only Big Boy No. 4014 is still in operation.

Union Pacific reminds all rail fans to keep safety top of mind and stay 25 feet back from the tracks when taking a picture or viewing this mammoth machine. That means never take a picture or video standing on the track or the ballast and never climb on the locomotive or equipment.

A steam tracking map showing No. 4014's location and route will be available at


Union Pacific (NYSE: UNP) delivers the goods families and businesses use every day with safe, reliable and efficient service. Operating in 23 western states, the company connects its customers and communities to the global economy. Trains are the most environmentally responsible way to move freight, helping Union Pacific protect future generations. More information about Union Pacific is available at

Union Pacific Media Contact: Robynn Tysver at 402-544-6037 or

Source: Union Pacific