Reaver Industries Key (spoiler?)

[Anthony Urban]

I got a key in the hobbe cave under the monorail station, I think it was called the Monorail Station Key, was just wondering what it unlocked... can anyone help?

 

[Dagzey]

I got a key in the hobbe cave under the monorail station, I think it was called the Monorail Station Key, was just wondering what it unlocked... can anyone help?

There is golden gate not far from where the monorail crashed. It will take you to another silver key and a couple of other little goodies.