Missing just the world.x0, world.x1 and/or world.x2 file(s) from a saved game folder is enough to cause the black map problem in the corresponding area.

"I'm sure there are files that store all of the information on the Council of Seven just as there are files that store the Dark Forest and Verdistis information, but I just don't know what they are."

The information for both the council hall and Verdistis is stored in the '1' files.