hey Vrago, thanks for checking out the game and taking time to read it through.
I think you’ve perfectly understood the essence of the map system. At Week scale, a map represents major points of interest, divided by a certain number of day’s travel.
Each of those individual days of travel is represented by other randomly rolled maps, as the player seeks to travel from Entrance to exit through the terrain.
The maps can even be used at a smaller scale, inside Bunkers and Lairs, to represent different rooms in an underground space.
Does that help at all?