Nothing says nodes have to all be connected.
Path process takes nodes you already have and tries to connect them automatically. When I created befallen yesterday for example I just ran around doing #path add until I got nodes in every spot possible then with process it will try to connect them. It's not perfect, sometimes it will connect nodes together it shouldn't, and sometimes it fails to connect nodes together that should be (especially in water it fails a lot).
And maps for dump and process output are relative to your zone server, when creating a zone I usually have a hotbutton: #path dump Maps/zonename.path
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