Big Boy #UP4014 finishes its Heartland of America tour Oct. 23, returning home to Cheyenne. Your last chance to see the locomotive in Colorado is tomorrow, during a whistle-stop in Greeley. View the schedule at UPsteam.com and remember - always stay 25-feet back! Thank you to coloradorailphotographer for this great fall photo! #BigBoyHeartland #BigBoy4014 #UnionPacific #SteamLocomotive