I Desperatly Need Filling In.

[senjuro]

The only map you get to see is the one that you mentioned, where Izzy overlays the real world and the DigiWorlds network connections and they line up. Aside from Server and File Island, we're not really told about anything else, though we can draw several conclusions from the various areas that we see.

We know there are deserts, in fact, quite a few of them. Mountain zones, forests and rainforests, and an arctic region and some tundra too. I guess you can assume that the same topographical regions exist there as in real life, but as for their placement, that's up to anyone's imagination.