What an amazing experience! Over a four day vacation, I flew out from Vermont to chase the UP 4014.
Starting early morning in Provo to ending in Milford.
Union Pacific 4014 is the largest operating steam locomotive in the world currently. Built in 1941, 4014 is one if the

(The first 5 minutes are of warming up the locomotive, skip to 2:45 for the building steam and 5:30 for departure)