133 communities West of the Mississippi are recognized as a “Train Town USA” by Union Pacific Railroad, for preserving authentic railroad heritage while maintaining operational significance.

https://www.up.com/aboutup/train_town/index.cfm is where you can use the interactive map

Museums, trains, depots, and significant things like the Tehachapi loop get places qualified to be a “Train Town USA” by the Union Pacific

Union Pacific developed the Train Town USA registry as part of its sesquicentennial celebration

https://www.journee-mondiale.com/en/this-oklahoma-town-of-17200-residents-just-earned-americas-rarest-railroad-honor/#google_vignette

https://cmt-stl.org/union-pacific-recognizes-kirkwood-as-train-town-usa/