History was made this morning (May 4th, 2019) as Union Pacific's legendary steam locomotives, Big Boy No. 4014 and Living Legend No. 844, left Cheyenne on their way to Ogden, Utah to celebrate 150 years of the Transcontinental Railroad.

Originally the plan was to have Living Legend No. 844 start its whistle-stop tour on April 27th and meet Big Boy No. 4014 in Ogden, Utah. In order to make sure Big Boy No. 4014 was ready they rescheduled it. So both steam locomotives left together Saturday to go to Ogden, Utah.

Once the two steam locomotives make it to Ogden, Utah they will re-enact the same photo that was taken there on May 10th, 1869. This is where the last spike was driven in to complete the Transcontinental Railroad.

After two years of restoration Big Boy No. 4014 is ready to make its final voyage.  It is the largest working steam locomotive in the world.

Along the way to Ogden, there will be several whistle stops, find out where those stops are by visiting the Union Pacific website.

MORE: See Steam Locomotives Christened In Cheyenne For Historic Trip