On May 4, 2019, No. 844 participated in the inaugural run of the newly-restored Big Boy No. 4014. The train departed the historic Cheyenne Depot following a christening ceremony for No. 4014. The two locomotives arrived at the Ogden Union Station on May 9 for the city's Heritage Festival. The two locomotives were on display at the station until May 12, when the return trip to Cheyenne began. They arrived at Cheyenne on May 19, concluding the first run of No. 4014 in excursion service.