The maps I gave you for reference leave a lot of details out. (Post-war and economic details, to be discovered during play) However there is no real reason you shouldn't know the pre-war map quite well.
Here is a copy of the F&E map, which naturally mine was based upon. It's kind of big. You might want to download a copy so you can resize it to see the whole thing at once.
-Herr Burt