Union Pacific “Big Boy” 4014 is the largest operating steam locomotive in the world and one of the biggest ever built. The locomotive is seen here in July of 2024 on a publicity tour for the Union Pacific Railroad. Union Pacific Railroad #trains #steamtrain #bigboy #bigboy4014 #trainspotting #unionpacific | Coasterfan2105

81K views · 9.9K reactions | Great trackside shots Of Union Pacific Big Boy locomotive 4006 and some onboard and closeup demonstrations of 4007. From the Pentrex show "Union Pacific Big Boy Collection" https://rfd.video/BBCollection | Steam Giants | Facebook

415K views · 12K reactions | Today the Union Pacific launch its 10-state Big Boy Steam No. 4014 Heartland of America tour. The journey begins in its home of Cheyenne. The last of its kind operating, the Big Boy No. 4014, was one of 25 built for the Pacific Union to conquer the steep grades of Utah's Wasatch Mountain Range during World War II. | Wyoming Tribune Eagle | Facebook

Union Pacific Railroad Big Boy 4014 departed the Colorado Model Railroad Museum just before 12:30 PM today. The world's largest steam locomotive will return this Saturday at 8:30 AM Mountain Time, 10:30 AM Eastern. So if you're a member, be sure to tune in! Virtual Railfan members can enjoy early access to our new Greeley cameras this week. On Friday, July 25th, it will be available to everyone as a free preview until Friday, August 1st. After that, the Greeley camera will be available to member