So I was thinking about this during... a few free moments at work... after I posted my recent update.

The mountains... I don't really have a use for them in the setting, and when I'd originally sketched it out, they were there mostly as a "future-proof" in case I wanted to do something with mountains. Geographically, there's not a lot of good reason for the mountains to be there, unless I got a bit more creative geographically later on.

BUT, given the backstory I've come up with, I'm thinking I'm gonna redo those mountains, making them into "mountains." More specifically, they'll be mountains in present parlance, but really they'll be a series of huge landfills from the old "modern" society... And that'll give me some wiggle room as far as the appearance, since a landfill looks different than a mountain.