That's it. It is definitely not a "hex generator" type of thing, but it is of great help in designing cities. And it does provide detailed encounter tables, so if those are of no use to you, you may not want to pay very much for it. A mini-version of this supplement was Midkemia Press' contribution to the boxed Thieves' World set, modified so as to be specific to Sanctuary.
Come to think of it, didn't Judges Guild publish something like a wilderness hex generator? I never owned it, but somehow that seems to ring a bell.