A public viewing of Big Boy locomotive is happening in Greeley on Saturday

Name: A public viewing of Big Boy locomotive is happening in Greeley on Saturday
Uploaded: 2025-07-18T18:09:00-0600
Duration: 29 s
Description: The world's largest operating steam train is in Denver. Union Pacific's legendary Big Boy No. 4014 locomotive made a pit stop in the Mile High City on Friday.

The world's largest operating steam train is in Denver. Union Pacific's legendary Big Boy No. 4014 locomotive made a pit stop in the Mile High City on Friday.