Union Pacific's steam 4-8-4 from 1944 is being readied for a return to service on 23 July
from the Union Pacific website:
UP’s Living Legend No. 844 continues to pass its exams as it readies for its big return to service at Cheyenne Frontier Days on July 23. No. 844’s engine was successfully test fired June 16, and a full steam test was completed on June 17.