Right in downtown Fort Collins:
It’s a plane!
And it’s on the corner of Mason and Mulberry streets and not just one; perhaps six of them! You might see this sort of thing in Renton, Washington but not here!
A Boeing 737 maybe?
Going north for final assembly someplace unknown; All the labels are blocked out. Perhaps they are going to a secret facility in Wellington?
Special parts package?
These special shipping containers had blocked out labels like the plane fuselage. If you Google “Boeing Train” you will see similar 737 train cars but the parts containers don’t look anything like this. These have a “NASA” feel to them.