Does Anyone Know Where To Find The Cajon Pass Movieset Location? (mastery)

Does anyone know where to find the cajon pass movieset location? (Mastery)

 

Near the mountain with the 66 written on it.

 

Yes, by the 66 Mtn, but I have not found a way to get to it.

And when I say "get to it" I mean on foot to look around. You can't see much from trackside.

 

Here is the location in the map:


And this is how it looks like:

 

Thanks I have found it