Train fans love those classic steam locomotives.  And the Big Boy 4014 from the Union Pacific is a fan favorite.  So why was the Big Boy built by the Union Pacific?  YouTube channel Megaprojects explains why Big Boy got built, and the mind blowing facts behind this locomotive.  Enjoy below!

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Trainscapes: Video Roundup Of Union Pacific’s Big Boy 4014 Steam Locomotive Trainscapes: Big Boy Maintenance, How To Keep Steam Locomotives Running Trainscapes: Big Boy 4014 Chase & Inside “Experience The Union Pacific” Rail Car