We have had the pleasure of visiting the museums and parks containing static displays of the amazing Union Pacific "Big Boy" steam locomotives. In 2024, we were able to view #4012 at Steamtown, Scranton, Pennsylvania. Just this year, 2026, we saw the beautifully maintained 4017 in Green Bay, Wisconsin. That makes it complete, we have seen all 8.

In addition to "museum" examples, since the re-start of #4014, we've managed to see this remarkable machine in action.

For #4014, see:

http://swansongrp.com/P/p/rail_narrative/x4014


The List:

www.ipernity.com/doc/2543754/52504410

4004 (Holliday Park, Cheyenne, Wyoming) -- viewed in park in 2015
www.ipernity.com/doc/2543754/52504098

4005 (Forney Transportation Museum, Denver, Colorado) -- viewed in 2015

www.ipernity.com/doc/2543754/53363928


4006 (National Museum of Transportation, St. Louis, Missouri) -- viewed in 1992
www.ipernity.com/doc/2543754/53170660

4012 (Steamtown, Scranton, Pennsylvania) -- viewed in 2024
www.ipernity.com/doc/2543754/52503904

4014 (back in action) -- first viewed in Pomona, California in the early 1960's. Now operating by Union Pacific. See link above

4017 (National Railroad Museum, Green Bay, Wisconsin) -- visited in 2026

4018 (Museum of the American Railroad, Frisco, Texas, was in former location in Dallas, Texas) -- viewed along highway near state fairgrounds in Dallas in ?

4023 (Kenefick Park, Omaha, Nebraska) -- climbed up to the display in 2026
www.ipernity.com/doc/2543754/53352452