The Wizard?

[JazzDad]

Dorothy, if you want to see the wizard, just follow the yellow rail road. Follow the yellow rail road. Follow...

 

[D&J RailRoad]

Those rails aren't spiked down.

 

[tootnkumin]

Those rails aren't spiked down.

That's the Wicked Witch of the West Railroad.

 

[Edsland]

Wow I wounder if that wire is going to the same place,LOL

 

[Rico]

Interesting, wonder where that is?
Seeing there is no ballast yet and the rails are loose I'd say that's a levelling string. That's how I laid my track in the yard.