It's just a town map visual in one of the early builds, no descriptions aside from the early towns. I've seen a video and people mention how to reproduce it independently so it seems alright.
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A more clear image: supposedly a full set of routes and cities/landmarks and only Kiloude made it into the final product.
Methinks this would've been a full blown post game area akin to DP's Battle Zone.
 
 
		

 
 
		


 
 
		





 
 
		 
 
		
 
 
		 
 
		