The location spell is not telling me what region I am in. It is only giving me coordinates, which, without knowing which region I am in, are utterly and completely worthless.

What region does middlegate zone out into? This is all I want to know. I step out and it doesn't tell me where I am. I have cast fly to every region letter-number combo, but none of them drop me by middlegate.

What outdoor region does middlegate zone into and where can I find a copy of the location spell that actually tells me what area I'm in?

You can find the area code for Middlegate by looking at the map.
I seem to recall being annoyed by the same thing last time I played it.

Yeah there's a PDF map included with the extras for the game. It's not particularly great quality though. Somewhere in this forum someone posted a higher-quality map, but the search function doesn't appear to be working, so I can't find it at the moment.

There is no version of the Location spell that tells you what area you're in, which can make for some interesting times when you enter a teleporter and come out somewhere new with no idea of where you are.

What the above said. And to answer your question: C2