Union Pacific Big Boy No. 4014 Steam Schedule
Keep Safety Top of Mind
- Stay back at least 25 feet from all railroad tracks. This includes drones.
- Railroad tracks, trestles, yards and right of way are private property - do not trespass.
- Never assume tracks are abandoned or inactive - ALWAYS expect a train.
- Be a safe and considerate driver - do not pace the train.
- Be Aware of the Environment: While we strive to provide access to all guests, Big Boy is positioned in a working rail environment with uneven walking surfaces that may create difficulty for accessibility.
This summer, Union Pacific's legendary Big Boy steam locomotive No. 4014 is joining up with our newest commemorative locomotive, No. 1616, which honors Abraham Lincoln's role in uniting the nation through rail and laying the foundation for America's freight rail network!
During this summer's limited excursion, the locomotives will make two public whistle-stops in Greeley, Colorado. 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.
The locomotives will leave Cheyenne on Thursday, July 17 at 10 a.m. MDT and stop in Greeley, Colorado for a public whistle-stop between 11:30 a.m. and 12:01 p.m. MDT. The locomotives will return to Cheyenne on Saturday, July 19, stopping again in Greeley for another public whistle-stop between 8:30 a.m. and 8:50 a.m MDT, before arriving in Cheyenne around 10:30 a.m. MDT. There will not be any public access to the locomotives in Cheyenne or Denver due to safety and security concerns.
For more information about the Museum's June auctions, please visit http://rarauctions.com/upm.
2025 Union Pacific Steam Schedule
Although this year's schedule is limited, the Big Boy will return to the rails in a big way in 2026 to celebrate America's 250th anniversary.
| Thursday, July 17 | ||
|---|---|---|
| Cheyenne, Wyoming (10:00 a.m. departure) to Denver, Colorado | ||
| Greeley, Colorado |
Arrival Depart |
11:30 a.m. MT 12:01 p.m. MT |
| Friday, July 18 | ||
| Locomotive Preparation NO PUBLIC ACCESS |
||
| Saturday, July 19 | ||
| Denver, Colorado to Cheyenne, Wyoming | ||
| Greeley, Colorado |
Arrival Depart |
8:30 a.m. MT 8:50 a.m. MT |
| Cheyenne, Wyoming NO PUBLIC ACCESS |
Arrival | 10:30 a.m. MT |
Union Pacific Steam Club
To be notified when news about Union Pacific's legendary steam program (including future steam excursions by Living Legend No. 844 and Big Boy No. 4014) becomes available, join the Official Union Pacific Steam Club at http://UP.com/SteamClub! Steam club members always get notified first when news about Union Pacific's steam program is released!