Two Union Pacific steam legends reunite for the first time since 2019: Big Boy No. 4014 and the "Living Legend" No. 844 will run together on a November 21 fundraising tour from Greeley to Denver benefiting Make-A-Wish. Tickets open to museum patrons October 16, the public October 19, but viewing the locomotives at Union Station stays free.

— via Popular Science, Laura Baisas