$1:
So what state is the Simpsons Springfield in.
I was going to put some time and effort into figuring that out. It is possible to figure out, they have left enough clues. I think that they also mentioned it in one of the more recent clip shows, but i can't remember what it was.
As far as that map, i think it is probably fairly accurate but is mostly guessing and random plotting. That being said, who ever made that had WAY too much time on their hands, even in the realm of Simpsons fanatics.