Experience one of the most iconic symbols of our rich rail heritage in the home of the world's largest rail yard. This year, North Platte Rail Days welcomes the newly-restored UP No. 4014 "Big Boy" steam engine, as well as tours of Union Pacific's world-renowned Bailey Yard and the Golden Spike Tower - plus the exciting selection of fun, family-friendly community events and unique attractions that make North Platte Rail Days the nation's greatest railroad celebration.