Union Pacific steam locomotive 4004 Big Boy for Rocky Mountain service between Cheyenne, WY & Ogden, UT now in Holliday Park. Cheyenne, WY.
Photo by Jim Steinhart © 2011, all rights reserved. (Ref: WYCR04)

Click an index below to see this photo among related images:

Cheyenne Rail Attractions
Captions List for Wyoming