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Union Pacific's Big Boy 4014 Will Make Two Whistle-Stops in Colorado During Limited 2025 Excursion

OMAHA, Neb.--(BUSINESS WIRE)--Union Pacific Railroad announced today its legendary steam locomotive, Big Boy No. 4014, will make two whistle-stops in Greeley, Colorado, this summer as part of a limited summer excursion. Big Boy will be accompanied by Union Pacific's No. 1616 Lincoln Locomotive, the railroad's newest commemorative locomotive, which honors Abraham Lincoln's role in uniting the nation through rail and laying the foundation for America's freight rail network. As part of this year's summer excursion, the Union Pacific Railroad Museum will auction off four exclusive cab rides between Cheyenne, Wyoming, and Denver, Colorado. All proceeds will go to the museum, a nonprofit that shares American history through the lens of the railroad. For more details of the June auction, visit Although this year's excursion is limited, Big Boy will return to the rails in a big way in 2026 to celebrate America's 250 th anniversary. Stay tuned for details. The 2025 excursion: July 17 Cheyenne, Wyoming, departs 10 a.m. MDT Greeley, Colorado, 11:30 a.m.-12 p.m. MDT July 19 Greeley, Colorado, 8:30-8:50 a.m. MDT Cheyenne, Wyoming, arrives 10:30 a.m. MDT Twenty-five Big Boys were built during World War II, but only eight survived. No. 4014 is the only one of the eight still in operation and remains the world's largest operating steam locomotive. 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 the colossal locomotive. That means never take a picture or video standing on the track or the ballast and never climb on the locomotive or equipment. To stay informed about Big Boy's schedule and future steam excursions, please join the Union Pacific Steam Club at A map showing No. 4014's location and route will be available on ABOUT UNION PACIFIC 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