On May 2, 2019, the Union Pacific Railroad's Big Boy 4-8-8-4 #4014 made a test run from Cheyenne, Wyoming to Nunn, Colorado, before turning back due to time constraints for the steam crew. As the train arrived Nunn, it took the siding to allow for the passage of two trains that were following the test run south on the Greeley Subdivision. Whilst in the siding, the steam crew took the opportunity to look everything over and perform any servicing necessary on the brand new parts. The crew is seen doing just that at nearly midnight on May 2. Additional prints are located: http://www.steelwheelsphotography.com/bigboy/
