I just finished up updating the Europe section to the new map archive layout.
In the process I decided to add a new section to the map archives. I called it 'Base Maps'. I think the title is self explanatory, but this is where all the maps without any events added will go.
I still have the Other Lands and North America sections left to do. As I get to them, any base maps found there will be moved to the new category.
I think this will make it easier for folks to distinguish between scenarios and maps.