4000-Class Wasatch Big Boy No. 4014

One of the world's biggest and most powerful steam locomotives is chugging back to Laramie after five years of restoration work.

Train enthusiasts will get a rare treat as two Union Pacific steam engines will be passing through Laramie May 4 and again May 17-19.

The 4000-Class Wasatch Big Boy No. 4014 will pull into the historic Laramie Railroad Depot at 12:30 p.m. on Saturday, May 4