MonoMonday Challenge 203 - Action / Adventure

A bit of lateral thinking here.... An abandoned rail line with the peril of falling rocks and falling snow. 

Where could it go? 
Why is the rail line light still lit? 
What is the time schedule? 
When will it arrive again? 
Who is it for?

How should we answer this conundrum?

Do you see the pending adventure aloof?  Dripping with action... 

As some of my other fun adrenaline buddies would say, "Who's in it with me?!"