score:7
It's fairly straight-forward to rule it out.
From this, one can safely conclude - there's no metro, and it's simply been filed/labelled in error. Nice find though!
Upvote:5
First you probably noticed the only review, mentioning it is a desert place.
Also, we can look at OpenStreetMap and see that there is most likely nothing, even though the track that arrives at that point is better shown in Google Maps satellite view (and we cannot see any trace of railway on this view).
A google search gives a unique result that seems to just parse information from Google Maps.
So to summarize, I suppose some wrong information was filled in Google Maps, there is likely no railway (even underground as Google Maps suggests) in this area.